Go Back
–+ servings
Gluten Free Cream of Mushroom Soup in a white bowl
Print Recipe
5 from 2 votes

Gluten-Free Cream of Mushroom Soup

This gluten-free cream of mushroom soup is delicious and comforting. It is great on it's own or perfect for using in casseroles and other recipes. The secret to its thick, creamy texture is cornstarch, not gluten-free flour.
Prep Time2 minutes
Cook Time13 minutes
Total Time15 minutes
Course: Soup
Cuisine: American
Keyword: cream of mushroom, gluten-free soup
Servings: 4 cups
Calories: 292kcal
Author: Chandice
Cost: $5

Ingredients

  • 3 cups chicken broth
  • 2 cups diced mushrooms
  • 1 cup milk
  • 1/2 cup butter
  • 1/3 cup cornstarch
  • 1/8 teaspoon black pepper
  • 1/2 teaspoon onion salt
  • 1/2 teaspoon garlic salt
  • 1 fresh sage leaf chopped fine

Instructions

  • In a stockpot, heat chicken broth and butter over medium heat until just starting to boil
  • Add diced mushroom, herbs, salt and pepper and cook for 10 minutes until mushrooms soften
  • Meanwhile, in a measuring cup with a spout, whisk the cornstarch and milk
  • Gently pour milk mixture into broth while whisking soup briskly
  • Let the soup simmer until thickened, about 3-5 minutes

Notes

This soup is fantastic on it's own and works great in casseroles! We use it in our gluten-free green bean casserole at Thanksgiving and our tater tot casserole and Instant Pot creamy Italian chicken the rest of the year.
You can absolutely freeze it. Just portion it out into snack sized ziplocks or small canning jars and pull them out whenever you need them.
You can use a dairy-free alternative milk and butter for this recipe.
While cornstarch is recommended thicken this soup, you could also use a high quality gluten-free cup for cup flour, arrowroot, tapioca or potato starch. I wouldn't recommend coconut or almond flour as this will not thicken your soup.
Pro Tip: Be sure to mix the cornstarch entirely into the milk so there are no clumps. I like to do a good scrape on the bottom to make sure none got stuck there. 
Pro Tip: Don't forget to constantly whisk the soup as you pour in the milk and cornstarch mixture to avoid clumps. 

Nutrition

Serving: 1cup | Calories: 292kcal | Carbohydrates: 14g | Protein: 3g | Fat: 25g | Saturated Fat: 16g | Cholesterol: 67mg | Sodium: 1353mg | Potassium: 222mg | Fiber: 1g | Sugar: 3g | Vitamin A: 810IU | Vitamin C: 12.4mg | Calcium: 86mg | Iron: 0.5mg