Classic Beurre Blanc Sauce

Name: Classic Beurre Blanc Sauce
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: 4 servings
Cuisine: French
Ingredients: 1/4 cup white wine (dry); 2 tablespoons white wine vinegar; 2 tablespoons shallots (finely chopped); 1/4 teaspoon salt; 1/8 teaspoon white pepper; 1 cup unsalted butter (cold, cubed)

25 min 4 servings Medium

All Recipes

A velvety and rich French butter sauce perfect for seafood dishes.

Prep

10 min

Cook

15 min

Total

25 min

Servings

Difficulty

Medium

Beurre blanc is a classic French sauce known for its creamy, buttery texture and subtle flavour. Originating from the Loire Valley, this sauce is a staple in French cuisine, often used to complement delicate dishes such as fish and seafood. The key to a successful beurre blanc is the emulsion of butter into a reduction of white wine and vinegar. This creates a luscious sauce that's perfect for drizzling over poached or grilled lobster, enhancing its natural sweetness with a touch of acidity and richness.

Instructions

Prepare the reduction

In a small saucepan over medium heat, combine white wine, white wine vinegar, and shallots. Bring to a simmer and reduce until about 2 tablespoons of liquid remain.

Pro tip: Reducing the liquid intensifies the flavour, so keep an eye on it to prevent burning.

Season the reduction

Add salt and white pepper to the reduced liquid. Stir well to combine.

Pro tip: Adjust seasoning based on the desired taste.

Begin adding butter

Lower the heat to low. Start whisking in the cold butter, a few cubes at a time, ensuring each batch is fully incorporated before adding more.

Pro tip: Maintain a low heat to keep the sauce from separating.

Finish the sauce

Continue whisking until all the butter is incorporated and the sauce is smooth and creamy. The sauce should not be boiling.

Pro tip: If the sauce starts to separate, remove it from heat and whisk in a cube of cold butter.

Strain the sauce

Strain the sauce through a fine-mesh sieve to remove the shallots, if a smooth texture is desired.

Pro tip: Straining is optional but gives a refined finish to the sauce.

Serve immediately

Transfer the beurre blanc to a serving dish and serve immediately over your choice of seafood.

Pro tip: Beurre blanc is best when served right away to maintain its emulsion.

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Tips & Tricks

Use cold, unsalted butter to ensure a smooth emulsion.
Whisk constantly while adding butter to prevent separation.
Serve immediately for best texture and flavour.
Pair with delicate seafood like lobster or sole.

Frequently Asked Questions

How do you make beurre blanc?

Beurre blanc is made by reducing white wine and vinegar with shallots, then emulsifying cold butter into the reduction.

What is beurre blanc best served with?

Beurre blanc pairs beautifully with seafood, particularly poached or grilled lobster and delicate white fish.

Can you make beurre blanc ahead of time?

You can prepare the reduction ahead, but the sauce should be finished with butter just before serving for best results.

Why did my beurre blanc separate?

Separation can occur if the sauce is too hot or the butter is added too quickly. Keep the heat low and add butter slowly.

How do you fix separated beurre blanc?

Remove from heat and whisk in a cube of cold butter to help re-emulsify the sauce.

Serving Suggestions

Beurre blanc is best served fresh and warm, as it can separate if reheated. Pair it with a perfectly poached lobster for an elegant dinner party dish that will impress your guests. To make ahead, prepare the reduction and keep it refrigerated. When ready to serve, gently reheat and whisk in the butter. Store any leftover sauce in the fridge for up to two days, but note that the texture will change upon reheating.