Name: Vanilla Sauce
Ingredients: 1 pint rich milk; 2 tablespoons granulated sugar; 4 egg yolks; 1 teaspoon vanilla extract

Why it works: Milk and vanilla are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 19,187 recipes. Both carry ethyl caproate, which smells fruity, apple peel. The science ↓

Vanilla Sauce

Ingredients

1 pint rich milk
2 tablespoons granulated sugar
4 egg yolks
1 teaspoon vanilla extract

Directions

Make the sauce

In a double boiler, heat the milk and sweeten it with sugar.
While the milk heats, beat the egg yolks until light and creamy.
Gradually add the hot milk to the egg yolks, stirring briskly.
Return the mixture to the double boiler and stir rapidly until it thickens.
Remove from heat, transfer to a bowl, and flavor with vanilla extract.

Serve

Serve very cold.

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.

Milk + vanillatop 5% of all pairs

Smell alikemoderate

Cooked together19,187 recipes

Shared aroma: ethyl caproate (fruity, apple peel).
Sugar + vanillatop 8% of all pairs

Smell alikelow

Cooked together35,032 recipes

Shared aroma: beta-damascenone (apple, rose).
Milk + eggtop 18% of all pairs

Smell alikemoderate

Cooked together88,785 recipes

Shared aroma: 2-nonenal (fatty, green).
Milk + sugartop 18% of all pairs

Smell alikelow

Cooked together77,875 recipes

Shared aroma: 2-nonenal (fatty, green).
Sugar + eggtop 21% of all pairs

Smell alikemoderate

Cooked together122,807 recipes

Shared aroma: 2-nonenal (fatty, green).

Sugar and vanilla barely smell alike, yet cooks put them together in 35,032 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Egg yolks: Thicken the sauce as they set gently with heat, giving it a smooth, custard-like body.
Milk: Forms the liquid base of the sauce and carries the heat that cooks the egg yolks.
Granulated sugar: Sweetens the milk, balancing the richness of the yolks.

The step that matters

Return the mixture to the double boiler and stir rapidly until it thickens. Egg yolks begin to set around 160°F, and if they overheat they can curdle or scramble. Gentle heat from a double boiler and constant stirring keep the sauce smooth and lightly thickened.

“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.