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 Leeks In Mustard Sauce?

You need 10 ingredients. The key ingredients include: 10 medium leeks (white portion only), 2 green onions with tops, chopped, 1 garlic clove, minced, 1 tablespoon olive oil, and more.

Is Leeks In Mustard Sauce suitable as general?

Yes, Leeks In Mustard Sauce falls under the General category and is a great choice for this type of meal.

How do I store leftover Leeks In Mustard Sauce?

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

Leeks In Mustard Sauce Recipe

Name: Leeks In Mustard Sauce
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 10 medium leeks (white portion only); 2 green onions with tops, chopped; 1 garlic clove, minced; 1 tablespoon olive oil; 3 large egg yolks; 1/4 cup water; 2 tablespoons lemon juice; 6 tablespoons cold butter; 1 tablespoon Dijon mustard; Dash white pepper

Try this homemade Leeks In Mustard Sauce recipe the whole family will love. Made with leeks, green onions, garlic and olive oil. Easy step-by-step instr…

This Leeks In Mustard Sauce relies on simple, everyday ingredients such as garlic clove, minced, olive oil, large egg yolks and water. It comes together quickly and makes 4 servings, at about 353 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 General

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.

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

My Personal Notes

Saved locally in your browser — visible only to you.

Leeks In Mustard Sauce

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions