How to Thicken Bean Soup

There is nothing more comforting than a hot bowl of soup on a cold day. If the soup turns out a bit too thin, there are a few ways to thicken it. Choose from one of these easy ways to thicken any soup or stew.

Things You'll Need

  • Flour or cornstarch
  • Water
  • Mild beans
  • Russet potato
  • Peeler
  • Grater
  • Measuring spoon
  • Strainer
  • Blender
(Image: Jupiterimages/Comstock/Getty Images)

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Using flour or cornstarch

Step 1

Add 2 tablespoons of flour or cornstarch to a small bowl of warm water.

White flour in bowl
White flour in bowl (Image: MargarytaVakhterova/iStock/Getty Images)

Step 2

Mix well until all of the clumps have disappeared.

Chef mixing with whisk
Chef mixing with whisk (Image: moodboard/moodboard/Getty Images)

Step 3

Pour the mixture into the soup and stir. Wait a couple of minutes for it to thicken. If it is not thick enough, repeat these steps until the soup reaches the desired consistency.

Woman stirs pot
Woman stirs pot (Image: Fuse/Fuse/Getty Images)


Step 1

Wash and peel a Russet potato.

Russet potatoes in basket
Russet potatoes in basket (Image: Roel Smart/iStock/Getty Images)

Step 2

Grate the potato into a fine consistency.

Grater (Image: George Doyle/Stockbyte/Getty Images)

Step 3

Add the grated potato to the soup. The potato will thicken the soup as it cooks.


Step 1

Open a can of mild beans. Cannellini beans work particularly well.

Bowl and spoonful of cannellini beans
Bowl and spoonful of cannellini beans (Image: unknown1861/iStock/Getty Images)

Step 2

Pour into a strainer and rinse well.

Cannellini beans rinsed in strainer
Cannellini beans rinsed in strainer (Image: luminouslens/iStock/Getty Images)

Step 3

Measure out 1 cup of soup and pour into a blender with the beans. Blend until smooth.

Blender in kitchen
Blender in kitchen (Image: Jupiterimages, Brand X Pictures/Stockbyte/Getty Images)

Step 4

Add the mixture back into the soup and stir.

Tips & Warnings

  • To avoid burning, always have the soup on medium heat when adding thickeners.
  • Wait at least four to five minutes before adding additional thickener.


  • Betty Crocker's Cookbook: Everything You Need To Know To Cook Today; Ninth Edition
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