Sauce Nantua Recipe

This Sauce Nantua recipe combines a smooth velouté base with cream and crayfish butter. Warm stock is whisked into a butter-and-flour roux, then enriched with cream and shellfish butter. Optional cooked crayfish tails add texture. Serve it with fish, seafood or quenelles.

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Sauce Nantua

This Sauce Nantua recipe combines a smooth velouté base with cream and crayfish butter. Warm stock is whisked into a butter-and-flour roux, then enriched with cream and shellfish butter. Optional cooked crayfish tails add texture. Serve it with fish, seafood or quenelles.

TypeSauces

CuisineFrench

Ingredients

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• 2 Tbsp unsalted butter
• 2 Tbsp all‑purpose flour
• 1 3/4 cups fish or chicken stock, warm
• ½ cup heavy cream
• 2 Tbsp crayfish butter* (or substitute with lobster butter)
• 3 Tbsp cooked crayfish tails, chopped (optional)
• Salt & white pepper, to taste

Instructions

1. Make veloutéIn a saucepan over medium heat, melt butter and whisk in flour. Cook 1–2 min.
2. Add stockGradually whisk in warm stock until smooth. Simmer 5 min until it coats the back of a spoon.
3. EnrichStir in cream and crayfish butter; bring back to a gentle simmer for 2–3 min.
4. FinishFold in chopped crayfish tails if using. Season with salt and white pepper. Strain for a silky texture.

Recipe Notes

Crayfish butter is butter cooked with crayfish shells and strained, as described in the original recipe.

Allergen Notes

Contains milk, wheat and shellfish. Also contains fish when made with fish stock. Check stock and shellfish-butter labels.

What gives Sauce Nantua its flavor?

Crayfish butter supplies the characteristic shellfish flavor. This recipe uses fish or chicken stock for the velouté base and allows lobster butter as an alternative to crayfish butter. Plain butter or extra stock will not provide the same shellfish flavor.

Tips for a smooth sauce

Whisk the warm stock into the roux gradually to help prevent lumps. Once you add cream and crayfish butter, keep the heat at a gentle simmer. If you strain the finished sauce for a silky texture, the optional crayfish pieces will be removed too.

Sauce Nantua questions

Can I skip the crayfish tails?

Yes. They are optional; the crayfish butter still supplies shellfish flavor.

What can I use instead of crayfish butter?

The recipe specifies the same quantity of lobster butter as an alternative. This changes the shellfish flavor but keeps a shellfish-butter finish.

Is this recipe dairy-free or gluten-free?

No. Butter and cream provide dairy, while the flour roux contains wheat. The recipe also contains shellfish, and fish stock adds fish. Dietary adaptations would need a separately tested recipe.

Learn the base, then explore another finish

Practice the roux-and-stock method with Velouté Sauce. For a milk-based roux sauce, compare Béchamel.

Explore more sauces

Browse our sauce recipes or build your skills with the free Basic Sauces Starter Guide.