Slow-Cooker White Bean Parmesan Soup Recipe (2024)

By Sarah DiGregorio

Slow-Cooker White Bean Parmesan Soup Recipe (1)

Total Time
About 8 to 10 hours, plus overnight soaking
Rating
4(3,625)
Notes
Read community notes

Parmesan rinds are magic. After a long braise, that hard, waxy scrap infuses the entire soup with its rich, distinctive flavor. Here, they make a wholesome soup taste like an incredible indulgence. So don't ever throw them away. They keep in the freezer indefinitely. The wheat berries here are also a great match for the slow cooker. While they may not be the most glamorous grains, they hold their shape and take a conveniently long time to get tender. You can find them at many grocery or natural-foods stores, as well as online. But you can also substitute farro or spelt (whole grains but not pearled). Just note that they'll cook faster and may end up quite soft after an 8-hour cook time.

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Ingredients

Yield:4 to 6 servings

  • 1pound dry cannellini beans, soaked overnight and drained
  • Kosher salt and black pepper
  • 8ounces Parmesan, hard rinds cut off and reserved, the rest grated for serving
  • 1cup wheat berries
  • ¼cup olive oil
  • 1large onion, finely chopped
  • 1fennel bulb, cored and finely chopped, fronds roughly chopped and reserved
  • 3celery stalks, sliced ½-inch thick
  • 6garlic cloves, roughly chopped
  • 1teaspoon fennel seeds
  • 1teaspoon red-pepper flakes
  • 2sprigs fresh rosemary
  • ½cup dry white wine
  • 6cups chicken stock or broth
  • Leaves from 1 small bunch flat-leaf parsley, chopped
  • Juice of 1 large lemon

Ingredient Substitution Guide

Nutritional analysis per serving (6 servings)

717 calories; 23 grams fat; 8 grams saturated fat; 0 grams trans fat; 11 grams monounsaturated fat; 2 grams polyunsaturated fat; 87 grams carbohydrates; 18 grams dietary fiber; 9 grams sugars; 42 grams protein; 1205 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Slow-Cooker White Bean Parmesan Soup Recipe (2)

Preparation

  1. Step

    1

    Put the soaked, drained beans in a 5- to 8-quart slow cooker, and season them generously with salt and pepper. Add the reserved Parmesan rinds and the wheat berries.

  2. Step

    2

    Warm the oil in a large skillet over medium-high heat. Add the onion, season generously with salt, and cook, stirring occasionally, until softened, about 5 minutes. Add the fennel. Continue to cook, stirring often, until the fennel is softened and the onion is lightly browned, about 5 more minutes. Add the celery and garlic, and cook, stirring, until just softened, about 1 minute. Add the fennel seeds and red pepper, and cook, stirring constantly, until combined and fragrant, about 1 minute. Add the rosemary and the wine and let the wine bubble until the pan is almost dry, about 2 minutes. (See Tip 1.)

  3. Scrape the mixture from the skillet into the slow cooker. Add the stock, and season it: Add ½ teaspoon salt, if you are using low-sodium broth, or 1 teaspoon salt, if using homemade unsalted stock. (Do not add salt now if you are using fully salted broth.) Stir to combine, and cook on low until the wheat berries are tender and the beans are creamy, about 8 to 10 hours. (See Tip 2. Taste the beans to make sure they are creamy; they can vary in their cooking time depending on their age.) The soup can hold well on warm for 1 to 2 additional hours.

  4. Step

    4

    Before serving, remove and discard the rosemary sprigs. Stir in the parsley, lemon juice, and reserved fennel fronds. Taste and add salt and pepper if necessary. Serve in bowls topped generously with grated Parmesan.

Tips

  • Sautéing the aromatics in a skillet makes a big difference in the finished soup, giving a caramelized flavor. But if you don’t have time, you can omit Step 2 and simply add everything to the slow cooker.
  • Beans should reach a simmer and cook until tender to be safe to eat. If your slow cooker does not reach a simmer on the low setting, increase the heat level to high, and ensure the beans cook at a simmer for at least 15 minutes at some point in the cooking process.

Ratings

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3,625

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Private Notes

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Cooking Notes

Zeldie

Slow cooker is for people who set dishes up and leave to work or whatever and come home to cooked food but I am not a fan. You can make this in an hour. Just use a nice heavy pot like le creuset ..follow instructions bring to boil cover w lid put in oven at 325. Check after 45 min. If u have convection use that setting. Viola

rcassens

You can easily make this without a slow cooker and with canned beans. It is delicious.

Janet

I did this tonight in my Instant Pot instead of a slow cooker. I put in unsoaked beans, farro, rinds into the inner pot, did the saute as in the recipe, added it to the pot with the beans/farro with the stock, etc. Cooked it on Bean/Chili cycle for 45 minutes. Let sit for 10 minutes, then released the pressure manually. It was great! Less than an hour cooking start to finish, with maybe 15 minutes prep. If you forget to soak the beans or to put it into the slow cooker on time, this is an option.

David

After posting this review my wife mentioned that she thought the soup was a tad too lemony. Shocked, I immediately re-evaluated our relationship and my previous post and came to these conclusions: 1) We're gonna make it. 2) Best to add 1/4-1/2 of the lemon juice at a time and continue to taste. Also, as noted elsewhere, this soup is VERY think. If you want a brothier soup, use 8-9 cups (yes, that much) instead of 6.

gv

Subbed two leeks for the fennel, so delicious!

ChristineRM

Hearty and wonderful! My quicker stovetop version: Added one chopped leek - veggies in the pot first in order as stated in the recipe. Then Swanson chicken broth in the pot and a cup of barley since I couldn’t get wheat berries at my local store. With the broth went the barley and a 1” x 2” Parmesan rind. I let the barley simmer for 1/2 hour before adding 2 15 oz cans of drained, rinsed white beans. Finished as stated. Healthy dose of salt and pepper. 1.5 hours start to finish - perfection!!

DPChurch

That old tip about not salting beans until after they are cooked, turns out to be a myth. Kenji Lopez-Alt at Serious Eats did one of his very methodical experiments to find out if it was true. It's worth reading.https://www.seriouseats.com/2016/09/salt-beans-cooking-soaking-water-good-or-bad.htmlI've started salting the bean soaking water and the cooking liquids, and it makes a huge difference to flavour of beans. (Same idea as salting water for cooking pasta or potatoes.)

Mara

Just a tiny hint about the parm rinds (I buy them when I see them at my local cheese provider and save them from hunks of Parm til I have a few pounds). If you use them for Parm stock or in this lovely soup you may want to put them into a cheesecloth bag suspended in the simmering stock, it will help with clean-up afterward. Otherwise the Parm may stick to to bottom of the pot making cleanup more burdensome. The reason for rinds is cost—if you cannot find them, throw in a little extra chees

Nate V

1 lb of dry beans is approximately equivalent to 4 cans pre-cooked beans. Takes about 1h 15m if you make it without a slow cooker.

SharonATX

It would be helpful to include the weight of the Parmesan rinds themselves for those of us who already have them saved up for such a purpose.

emily hoffman

Wow, this soup is good, one of the best I’ve ever prepared I’d even say. I did it in the crockpot but it could have easily been done stovetop. It’s rich and creamy, full of flavor and really well balanced, had a little bit of warmth from the red pepper, and a freshness from the little splash of lemon juice that rounds out the sharpness of the cheese.Simply wow.

jmack

Oh wow. This soup is just so good. Two nights in a row and it's still crazy delicious. I used barley as I realized at the last moment that I didn't have farro, par-cooked it and the beans then threw everything in the slow cooker for 4-5 hours with parm rind. Everything else was pretty much to the recipe. One more drop of liquid in my 6 qt cooker and it would have been over the rim. Reheats beautifully. I'm adding it to the winter soup line-up. Yum.

A.B.

I'm gluten-intolerant and literally making this right now just using long grain brown rice instead. I think sorghum would be fine to use, but I also don't think just leaving out the wheat berries would really be a problem. There's a fair bit of substance to the soup without them.

Fran Eckert

To the person who hates licorice flavor, the cumin suggestion as a substitute will change the flavor of this soup dramatically and, IMHO, does not complement the other ingredients at all. Just sub another aromatic such as leek (as another reviewer did).

David Spence

Do the parmesan rinds melt into the soup, or are they removed at the end?

Carrie

Used canned beans and left out the fennel seed. Really good!

Matthew

Very good. My only departure from the recipe as-as was to add more liquid (8 cups broth), may need a bit more liquid added the second day -- it is VERY thick. Don't be shy with the parmesan, parsley and lemon juice! I think the recipe could easily be made on the stovetop, with dry or canned beans.

Rachel

I made this on the stove top today- boiled beans for 2 hours and then made the soup as written and simmered for another 2 or 3 hours. I added spinach right before serving because I had it in the fridge. We loved this soup but I think it could be even better with some crunchy lemony breadcrumbs on top.

Jeri

I used canned beans in a Dutch oven, as suggested by others, and it was delicious. The second time I made this soup, I did not use the TSP fennel seeds. To my taste, the fennel bulb gave just the balance of fennel, lemon, and beef. Also, the second go-round, I used barley rather than wheat berry because I had it. It was a different taste but no better or worse.

mmk

i did this wrong in so many ways—had no fennel or fennel seeds, used pearled farro, swapped it out of the slow cooker for the stovetop halfway through. and yet it was STILL so good

Delicious Flavor!

So when I first tried this, I followed the recipe. After 10 hours of beautiful smells in my home, I was sad to find my beans were hard and "crunchy". Despite soaking overnight and cooking for 10hrs, my beans were hard and inedible. Second round, I used canned beans, cooked in a pot on the stove and I had soup ready in about 1hr. Also, I followed the recommendation to add 8 cups instead of 6 cups for a more brothy soup and it came out perfect. Already planning on when I'll be making it again!

FH Cyclist

Is Ed Instant pot method and I thought a lot easier than slow cooker. Used tepary beans and Romano cheese (staples in my house). Wonderful dish for a winter evening. Used 1/4 tsp of pepper flakes. More than enuf for me!

Allyson (from comments section)

30 Jan 2024Scared about election Picked up Henry early today; we started BFG and made blueberry muffins though I neglected to cream the butter

Matthew

I'm uneasy about the election as well.... but i still enjoyed the soup!

Sheila Q

Have made this a few times now, and use farrow every time (instead of wheat berries)…adding them about halfway through slow-cooker time and they are perfect. I LOVE this recipe. One of my all-time faves.

jillsdailydish

Made this recipe according to the instruction except I had to substitute farro for wheat berries. (Just couldn’t find them at my store.). I did end up adding two more cups of stock to think it out. Despite the addition it eats more stew like, but it is absolutely delicious!

KMorley

I am making this soup now and and one detail has me wondering: the recipe calls for finely chopping the fennel bulb and coarsely chopping the fennel fronds. What should I do with the fennel stalks (the part between between bulb and fronds)? Discard?

Adriene

Chop them thinly and add them with the fennel bulb.

Christopher

Our beans (bought yesterday, soaked overnight, in slow cooker for 10 hours on low then 1 hour on high) were still hard. As I type this I am nuking the soup on the stove to get the beans soft so as to make sure they are safe to eat. Read scientific research now as well saying not to slow cook beans. Due to toxins in them that must be cooked at higher temperatures than most slow cookers can reach.As other commenters say, just make this on the stove.

ParkerCooks

Avoid this recipe. Waste of time. Time consuming. Beige color super unappealing. Skipped fennel seeds and red peppers but flavor was very off. No way to salvage this.

Lizzi

PS: I might make it again. However, next time I’ll add canned beans. I had cooked the beans separately w/veggie broth but they came out way too salty and it just took away the great taste of the other ingredients in the soup.

Haley

Cooked beans in advance and added them after the barley was cooked in the broth. I agree with other comments that it ends up being a quite thick soup, so definitely add more cups of water. Very delicious, even though I forgot the fennel bulb and the rosemary.

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Slow-Cooker White Bean Parmesan Soup Recipe (2024)

FAQs

How do you make bean soup thicker? ›

5 Ways to Thicken Bean Soup
  1. Reduce the soup. Simmering your soup over low heat on the stovetop or in a slow cooker will cause the water in the soup to evaporate and the soup to naturally thicken. ...
  2. Add a thickening agent. ...
  3. Purée the beans. ...
  4. Prepare a roux. ...
  5. Add puréed vegetables.
Jan 25, 2022

What is the thickener in a white bean soup? ›

What is the thickener in a white bean soup? In this recipe, what really thickens up the soup is the 15 oz of white beans that you are mashing and the starches from the potatoes. We aren't using cornstarch or a thickening agent in this recipe, it really doesn't need it!

How do I reduce the liquid in my slow cooker? ›

If it comes to serving and you open your slow cooker to find a watery sauce, never fear we have an easy answer. Take the lid off, turn the machine up to high heat and leave it for 30-45 minutes to let excess moisture cook off. The liquid will reduce, leaving you with a thick and delicious gravy or sauce.

Should you stir slow cooker soup? ›

Due to the nature of a slow cooker, there is no need to stir the food unless it specifically says to in your recipe. In fact, taking the lid off to stir food causes the slow cooker to lose a significant amount of heat, extending the cooking time required. Therefore, it is best not to remove the lid for stirring.

What if my bean soup needs more flavor? ›

Try adding some acidity. A splash of lemon juice or a tablespoon of white wine vinegar can brighten the flavors of the soup.

What is the best soup thickener? ›

Add Flour Or Cornstarch

You can thicken soup by adding flour, cornstarch, or another starchy substitute. For the best results, never add flour or cornstarch directly to your soup. If you do, it will clump up on top. Instead, ladle a small amount of broth into a separate bowl and let it cool.

Is it better to thicken soup with flour or cornstarch? ›

The most classic and surefire way to thicken a broth-based soup is with a cornstarch slurry. Whisk together equal parts cornstarch (or arrowroot) and water or broth, then whisk it into the pot of soup. A good ratio to get to a pleasant thickness without your soup tasting goopy or heavy is one tablespoon.

How do you make soup creamier and thicker? ›

6 ways to thicken soup:
  1. Blend all or part of it. If you've made a broth with chunks of vegetable in it, such as minestrone soup, then pour the soup through a sieve. ...
  2. Add cream or yogurt. ...
  3. Add flour or cornflour. ...
  4. Use a butter and flour paste. ...
  5. Blend in bread. ...
  6. Add lentils or rice.

How do you make bean soup thicker without cornstarch? ›

You could use a hand potato masher, but if you used a hand blender or a regular blender and puree some of the beans and the broth, you will get a creamy liquid that will mix back into your soup and thicken it without changing the flavor at all.

Is 4 hours on high the same as 8 hours on low in a slow cooker? ›

The difference between "High" and "Low" on slow cookers seems to differ with every brand and model. One thing that is consistent, though, is that food takes seven to eight hours to reach a simmer point (around 210°) on low; versus three to four hours on high.

What happens if you put too much liquid in a slow cooker? ›

But adding too much liquid can dilute the flavors.

Chef Faisal al Deleigan told BI that it's also not good to add too much bland liquid to a slow cooker. "Using too much liquid can result in a dish that tastes under-seasoned or looks very pale and unappealing," he said.

What happens if you put too much water in slow cooker? ›

If you add too much water, you will essentially end up boiling the contents of the slow cooker. Say you are cooking something like chicken, the chicken already has some water in its tissues and it also has some fat. You might add a tablespoon of oil/butter.

Is it OK to leave soup in a crockpot overnight? ›

Most appliances will automatically shut off after 20 or so hours on this setting, but you shouldn't leave food in a slow cooker for an extended length of time. The general rule of thumb is that 2-4 hours is the maximum length of time you can leave food in a slow cooker on warm.

How long can you leave soup in crockpot on low? ›

That varies by what's inside the slow cooker and also by the appliance's setting and model, the experts say. Most recipes for all-day cooking call for 6 to 8 hours on low. Quality- (and safety-) wise, another 1 to 2 hours in 'keep warm' mode won't mess things up.

Can you overcook soup in a slow cooker? ›

Editor's Tip: Can you overcook soup in a slow cooker? It's a common question—and the short answer is yes. Ingredients like veggies, pasta and rice can get very mushy if left in the slow cooker too long. Many meats will toughen, too.

What ingredient makes soup thicker? ›

About this method: One of the most common ways to thicken sauces and soups is with a starch-based slurry, and cornstarch is a popular choice. Cornstarch is flavorless, easy to mix up, and versatile, which makes it a go-to pantry ingredient.

Why is my bean soup watery? ›

To thicken the broth in bean soup, you can try the following methods: Mashing a Portion of Beans: Gently mash a portion of the cooked beans against the side of the pot. This releases starches, naturally thickening the broth. Be careful not to overdo it; you still want to maintain the soup's texture.

What do you put in beans to make the juice thicker? ›

If your beans are still too watery after prolonged cooking and mashing, consider adding a thickener like cornstarch, all-purpose flour, or arrowroot. To do this, first, make a slurry of equal parts thickener and water, then slowly add it to your refried beans. They should thicken considerably.

What can I use to thicken beans? ›

You can also make a slurry of 2 tablespoons of cornstarch and about a cup or so of cool water, or some of the bean liquid. If you use the bean liquid, remove it first and set it aside to cool slightly.

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