Name: Mushroom Stock Soup
Ingredients: 2 cups chicken or turkey stock; ½ pound fresh mushrooms, cooked and chopped; 2 tablespoons butter; 2 tablespoons flour

Why it works: Chicken and mushroom are a kitchen classic. They rank in the top 4% of all ingredient pairs, and cooks put them together in 4,172 recipes. Both carry 1-butyl acetate, which smells fruity, banana. The science ↓

Mushroom Stock Soup

Ingredients

2 cups chicken or turkey stock
½ pound fresh mushrooms, cooked and chopped
2 tablespoons butter
2 tablespoons flour

Directions

In a pot, combine the chicken or turkey stock with the chopped mushrooms.
In a separate pan, melt the butter over medium heat.
Stir in the flour and cook for a minute until smooth.
Gradually add the butter‑flour mixture to the stock, stirring constantly until thickened.

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.

Chicken + mushroomtop 4% of all pairs

Smell alikemoderate

Cooked together4,172 recipes

Shared aroma: 1-butyl acetate (fruity, banana).
Mushroom + buttertop 7% of all pairs

Smell alikemoderate

Cooked together12,525 recipes

Shared aroma: trans-2-decenal (waxy, orange).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

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

Smell alikemoderate

Cooked together13,902 recipes

Shared aroma: 2-furfurylthiol (coffee, roasted).
Mushroom + flourtop 18% of all pairs

Smell alikemoderate

Cooked together8,253 recipes

Shared aroma: isobutyraldehyde (malty, green).

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

Chicken or turkey stock: Forms the liquid base and carries most of the soup's savory flavor.
Mushrooms: Add earthy flavor and body to the soup.
Butter: Adds richness and carries flavor, and forms the base of the roux.
Flour: Thickens the soup as its starch swells in the hot liquid.

The step that matters

Gradually add the butter‑flour mixture to the stock, stirring constantly. Flour starch needs to disperse evenly in the hot liquid before it swells. Adding it slowly while stirring prevents lumps and gives a smooth, evenly thickened soup.

“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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Mushroom Stock Soup