Relais De L’Entrecote Sauce Recipe: Parisian Steakhouse Butter Emulsion

I’ve spent years perfecting this Parisian steakhouse sauce to capture its signature rich, velvety texture. The secret lies in a slow butter emulsion that transforms simple ingredients into something extraordinary.

This recipe yields a smooth, deeply flavorful sauce that pairs perfectly with steak, potatoes, or roasted vegetables. It’s the kind of finish that elevates a good meal to unforgettable.

Ingredients for Relais De L’entrecote Sauce

Ten ingredients. One rich, velvety sauce. Parisian steakhouse magic at home.

The butter is non-negotiable—European-style with 82-85% fat content creates the stable emulsion this sauce demands. Plugrá or Kerrygold are excellent choices. Shallots should be fresh, firm, and free of sprouts; their mild sweetness balances the acidity. For the wine, use something dry and crisp that you’d actually drink. Avoid cooking wines with added salt.

No white wine? Substitute with extra beef stock and a splash of lemon juice. Out of shallots? Sweet onion at half the volume works in a pinch. For a deeper umami note, add a dash of soy sauce. The mustard can be yellow in a bind, but Dijon’s sharpness is ideal. If avoiding alcohol, de-alcoholized white wine maintains the acidity without the spirits.

This sauce is best served immediately but can be held in a thermos for up to 1 hour. Reheat gently on low, whisking constantly to prevent separation. Store any leftovers in an airtight container in the fridge for 2-3 days—though it’s rarely an issue.

Step-by-Step Instructions for Relais de l’Entrecote Butter Emulsion

Master this classic Parisian technique for a rich, velvety sauce that elevates any steak.

Step 1: Sauté the Shallots Until Translucent

Melt ¼ cup of the unsalted butter in a heavy saucepan over medium heat. When the foam subsides, add the 0.25 cup Shallots and cook for 3-4 minutes, stirring frequently, until they soften and turn translucent.

Be careful not to let them brown—this isn’t a caramelization step. The shallots should melt into the butter, releasing their sweet aroma without developing color. This creates the flavor base for your sauce.

Step 2: Deglaze with Vinegar and Wine

Pour in the 0.25 cup White Wine Vinegar and 0.25 cup Dry White Wine. Increase heat to medium-high and let the mixture simmer vigorously for 4-5 minutes until reduced by half.

The liquid should become syrupy and the sharp vinegar aroma will mellow into a bright, balanced acidity. This step is crucial for cutting through the richness of the butter emulsion while building depth of flavor.

Step 3: Incorporate Stock and Aromatics

Add the 0.5 cup Beef Stock, 1 tbsp Dijon Mustard, 1 tsp Worcestershire Sauce, and 1 tbsp Fresh Thyme Leaves. Simmer for another 3-4 minutes until slightly thickened.

The mixture should coat the back of a spoon. The beef stock adds meaty depth, while the mustard and Worcestershire contribute complexity. Taste and adjust seasoning with 0.5 tsp Kosher Salt and 0.25 tsp Freshly Ground Black Pepper.

Step 4: Emulsify with Remaining Butter

Reduce heat to low. Add the remaining ¾ cup Unsalted Butter, one tablespoon at a time, whisking constantly until each addition is fully incorporated before adding more.

The sauce will transform from a thin liquid to a thick, glossy emulsion. This process requires patience—rushing it by adding too much butter at once will cause the sauce to break. The finished sauce should have the consistency of thick cream and a beautiful sheen.

Step 5: Strain and Serve Immediately

Remove from heat and immediately strain through a fine-mesh sieve into a warm bowl. This removes the thyme leaves and any solids, leaving you with a silky smooth sauce.

Use right away while hot. The sauce will thicken slightly as it cools but can be reheated gently over warm water if needed. For best results, spoon over freshly cooked steaks and serve immediately.

Wine and Beer Pairings for This relais de lentrecote sauce

French Wine Pairings

A classic Bordeaux red like Château Margaux complements the sauce’s richness with its dark fruit and earthy notes. The tannins cut through the butter beautifully. For white, a crisp Sancerre offers bright acidity to balance the emulsion. 🍷

Burgundy Selections

I always reach for a Pinot Noir from Bourgogne—its red fruit and subtle spice enhance the shallots. A Chablis works wonderfully too, with its mineral notes contrasting the creamy texture.

Beer Alternatives

A Belgian dubbel like Chimay Red provides caramel sweetness that pairs well with the sauce. For lighter options, a French saison with peppery notes adds complexity without overwhelming the dish. 🍺

Sparkling Options

Surprisingly, a Brut Champagne cleanses the palate between bites of steak and sauce. The bubbles and acidity refresh without competing with the rich flavors. I love this unexpected pairing.

Non-Alcoholic Choices

For a non-alcoholic match, try sparkling apple cider with its crisp sweetness. A black tea like Earl Grey offers bergamot notes that complement the thyme in the sauce. ✨

Frequently Asked Questions