Name: Chicken Terrapin
Ingredients: 3 tablespoons butter; 2 tablespoons flour; ½ teaspoon salt; a little pepper; 1 cup sweet milk; 1½ cups cooked chicken, cut fine; 2 hard-boiled egg yolks, cut fine; 2 hard-boiled egg whites, cut in ½ inch pieces

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Chicken Terrapin

Ingredients

Directions

Make the sauce

Melt the butter in a saucepan.
Stir in the flour, salt, and pepper.
Gradually add the sweet milk, stirring until thickened.

Finish and serve

Add the cooked chicken, egg yolks, and egg whites.
Cook for 2 more minutes and serve on toast.

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.

Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).
Milk + chickentop 13% of all pairs

Smell alikemoderate

Cooked together4,389 recipes

Shared aroma: 1-hexanal (fruit).
Flour + milktop 14% of all pairs

Smell alikelow

Cooked together78,219 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + chickentop 15% of all pairs

Smell alikemoderate

Cooked together13,902 recipes

Shared aroma: 2-furfurylthiol (coffee, roasted).

Butter and flour barely smell alike, yet cooks put them together in 124,287 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

Butter: Enriches the sauce and carries flavor while forming the base for the roux.
Flour: Thickens the milk into a smooth white sauce when cooked with the butter.
Sweet milk: Forms the liquid base of the sauce, which thickens as it heats.
Cooked chicken: Provides the main protein and body in the creamy mixture.
Hard-boiled egg yolks: Add richness and a creamy texture to the sauce.
Hard-boiled egg whites: Add soft, mild texture and body to the finished mixture.

The step that matters

Gradually add the sweet milk, stirring until thickened. Adding milk slowly while stirring keeps flour from clumping, so the sauce becomes smooth. Adding it all at once can leave lumps that are hard to remove.

“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.

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Chicken Terrapin