Big-Batch Homemade Cream of Mushroom Soup

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Freezer-Ready | Recipe-Ready | Replaces 12 Cans

There are a handful of pantry staples that show up again and again in everyday cooking, and cream of mushroom soup is one of them. Casseroles, skillet meals, gravies, slow cooker dinners… it sneaks into everything.

This homemade version is designed to replace canned condensed cream of mushroom soup one-for-one, but with simple ingredients and a freezer system that makes from-scratch cooking easier, not harder.

This big batch makes 12 single-recipe portions, so you can cook once and stock your freezer for weeks.

Why Make It Homemade?

• ✔ Replaces 12 cans (10–10.5 oz each)
• ✔ Freezes beautifully
• ✔ Uses simple, real ingredients
• ✔ Portion once, use without thinking later

I freeze this already measured, so when a recipe calls for “1 can of cream of mushroom soup,” I grab one container and move on. No math. No guesswork.

Yield

• About 15 cups of finished soup
• Portion into 1¼-cup containers
• Each portion = 1 can equivalent
• Total: 12 servings

That 1¼-cup measurement is the magic number to replace the can.

Ingredients (Big Batch)

• 1 cup butter (2 sticks)
• 2 cups finely diced onion (about 2 large)
• 8 cloves garlic, minced
• 8 cups finely chopped mushrooms
  (about 2½ lb fresh mushrooms — button, baby bella, or a mix)
• 1 cup all-purpose flour
• 4 cups chicken broth
• 4 cups milk or half-and-half
• 2 tsp salt (start here, adjust later)
• 2 tsp black pepper

Optional depth (choose 1–2, not all):

• 2 tsp Worcestershire sauce
• 2 tsp soy sauce or tamari
• 2 tsp dried thyme

Method

• Melt the butter
  In a large Dutch oven or stockpot, melt butter over medium heat.
• Cook the onions
  Add onions and cook until soft and translucent, about 8–10 minutes.

• Add garlic
  Stir in garlic and cook 30 seconds, just until fragrant.
• Cook the mushrooms
  Add mushrooms and 1 tsp salt.
  Cook until mushrooms release their liquid and it mostly evaporates.
  This step builds flavor — don’t rush it.

• Add the flour
  Sprinkle flour evenly over the pot. Stir well and cook for a full 2 minutes.
• Add liquids
  Slowly pour in broth, stirring constantly.
  The mixture will thicken quickly — that’s exactly what you want.
  Stir in milk or half-and-half.
• Simmer
  Simmer 10–15 minutes, stirring occasionally, until thick and condensed.

• Season and adjust
  Add remaining salt, pepper, and any optional seasonings. Taste and adjust.
• Optional blending
  For a smoother, more “canned-style” texture, blend partially with an immersion blender.

Texture Check (Important)

You’re looking for soup that is:

• Thick
• Spoon-coating
• Pourable, but slow

If it’s too thick → add milk ¼ cup at a time
If it’s too thin → simmer uncovered a few more minutes

Freezing System (This Is the Game-Changer)

1. Let soup cool completely
2. Portion into 1¼-cup containers
   • Wide-mouth jars
   • Souper Cubes
   • Deli containers, just use what you have!
3. Label clearly:
   • Cream of Mushroom Soup
   • 1 can equivalent
   • Date
4. Freeze (flat if possible)

Thawing

• Reheat gently on the stovetop
• Whisk while reheating — separation is normal and fixes itself when warm

How to Use It

Use one 1¼-cup portion anywhere a recipe calls for one can of condensed cream of mushroom soup:

• Casseroles
• Skillet meals
• Gravies
• Slow cooker recipes
• Freezer meals

I freeze it measured out so I never have to think about it!

Final Encouragement

Building a from-scratch pantry doesn’t mean doing everything all the time.
It means setting yourself up well once, so future meals are easier.

This is one of those recipes.

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