How to Make Cheesy Leek and Mustard Soup - A Step-by-Step Guide

There's nothing quite like a warm, comforting bowl of soup on a chilly day. And when it comes to cozy, satisfying soups, it's hard to beat a delicious, homemade cheesy leek and mustard soup. This creamy, flavorful dish is the perfect way to warm up and fill your kitchen with mouthwatering aromas. With its combination of tender leeks, tangy mustard, and gooey melted cheese, this soup is a true crowd-pleaser that's sure to become a favorite in your household.

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Ingredients

  • 1 ½ pounds leeks, sliced
  • 1 onion, chopped
  • 1 potato, cubed
  • 1 carrot, chopped
  • 1 tablespoon margarine
  • 1 tablespoon olive oil
  • 1 ¼ teaspoons dry mustard powder
  • 2 teaspoons cornstarch
  • ½ cup water
  • salt and pepper to taste
  • 1 teaspoon white sugar
  • 5 cups water
  • 1 cube vegetable bouillon
  • 1 cup heavy whipping cream
  • ⅛ cup shredded Gruyere cheese
  • ¼ cup shredded Cheddar cheese

Information

  • Prep Time: 20 mins
  • Cook Time: 1 hr 40 mins
  • Total Time: 2 hrs
  • Servings: 4
  • Yield: 4 to 6 servings

  • In a large pot over medium heat, saute the leeks, onion, potato and carrot in the butter or margarine and the olive oil for 10 minutes, or until all vegetables are tender.
  • Mix the mustard powder and cornstarch with the 1/2 cup water to make a thin paste. Set aside.
  • Season the vegetable mixture with salt and pepper and sugar. Stir in the mustard-water mixture and the 5 cups water. Bring mixture to a boil. Stir in the bouillon cube, reduce heat and simmer for about one hour, until reduced by half.
  • Using a hand blender or upright blender, puree mixture until frothy but not completely smooth.
  • Return this to the pot and bring to a boil. Stir in the heavy cream, Gruyere and Cheddar cheeses. Heat until cheeses melt, do not boil. Serve hot.
  • Nutrition

    479 cal.

    • Total Fat: 32g
    • Saturated Fat: 17g
    • Cholesterol: 93mg
    • Sodium: 162mg
    • Total Carbohydrate: 42g
    • Dietary Fiber: 5g
    • Total Sugars: 10g
    • Protein: 8g
    • Vitamin C: 34mg
    • Calcium: 246mg
    • Iron: 4mg
    • Potassium: 684mg