Name: Cold Maitre D Hotel, or Stewards Sauce
Ingredients: 2 oz butter; 1 heaped teaspoon young minced parsley; 1 small saltspoonful coarse sea salt; pepper to taste; 1 lemon; Cayenne pepper to taste; 4 fresh eggs

Why it works: Parsley and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 14,037 recipes. Both carry beta-phellandrene, which smells minty, terpene. The science ↓

Cold Maitre D Hotel, or Stewards Sauce

Ingredients

Directions

Make the sauce

Blend the butter, parsley, salt, and pepper until perfectly mixed.
Add the juice of one lemon and a pinch of cayenne pepper.
In a separate bowl, beat the eggs until smooth and slightly thickened.
Combine the egg mixture with the butter mixture and mix well.

Serve

Serve with salads of dressed vegetables, salt fish, or hard-boiled eggs.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

Parsley + lemontop 1% of all pairs

Smell alikestrong

Cooked together14,037 recipes

Shared aroma: beta-phellandrene (minty, terpene).
Parsley + peppertop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Pepper + lemontop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Butter + parsleytop 15% of all pairs

Smell alikemoderate

Cooked together28,563 recipes

Shared aroma: trans-2-hexenal (green, leafy).
Butter + lemontop 16% of all pairs

Smell alikemoderate

Cooked together41,227 recipes

Shared aroma: 3-hexenal (apple, fruity).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Butter: Adds richness and a smooth, creamy body to the sauce.
Eggs: Beaten eggs thicken and emulsify the sauce, giving it a light, body-rich texture.
Lemon: Its juice adds acidity that brightens the rich butter and eggs.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.