How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Leek Potato Mushroom Cheddar Soup?

You need 15 ingredients. The key ingredients include: 2 leeks, finely chopped (white part only), 1 clove garlic, finely chopped, 4 medium potatoes (red or Yukon Gold), chopped, 2 tablespoons butter, divided, and more.

Is Leek Potato Mushroom Cheddar Soup suitable as soups & stews?

Yes, Leek Potato Mushroom Cheddar Soup falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Leek Potato Mushroom Cheddar Soup?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Leek Potato Mushroom Cheddar Soup Recipe

Name: Leek Potato Mushroom Cheddar Soup
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 leeks, finely chopped (white part only); 1 clove garlic, finely chopped; 4 medium potatoes (red or Yukon Gold), chopped; 2 tablespoons butter, divided; 1 tablespoon olive oil; 1 1/2 teaspoons ground mustard; 2 tablespoons flour; 1/2 cup water; 3 cups chicken broth; salt, pepper, and celery salt, to taste; 1/2 cup shredded Cheddar cheese; 2 tablespoons Parmesan cheese; 1 cup milk; 3 ounces chopped portobello mushrooms; croutons for garnish, if desired

Warm up with this hearty Leek Potato Mushroom Cheddar Soup recipe. Made with leeks, clove garlic, potatoes and butter. Easy step-by-step instructions in…

This Leek Potato Mushroom Cheddar Soup relies on simple, everyday ingredients such as garlic, finely chopped, butter, divided, olive oil and ground mustard. It comes together quickly and makes 4 servings, at about 603 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Leek Potato Mushroom Cheddar Soup

Tips for the best results

Variations & substitutions

My Personal Notes

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