Name: Baked Mackerel
Ingredients: 1 whole mackerel; ½ cup bread crumbs; 2 teaspoons sweet herbs, chopped; ½ pint broth; ⅓ cup catsup; ⅓ cup vinegar; salt to taste; pepper to taste

Why it works: Vinegar and pepper are a kitchen classic. They rank in the top 14% of all ingredient pairs, and cooks put them together in 27,814 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Baked Mackerel

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare

Preheat your oven to 350°F (175°C).

Assemble and bake

Stuff the mackerel with bread crumbs and chopped sweet herbs.
Place the fish in a deep dish and add the broth, catsup, vinegar, salt, and pepper.
Cover the fish with more bread crumbs.
Bake in the oven until cooked through.

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.

Vinegar + peppertop 14% of all pairs

Smell alikemoderate

Cooked together27,814 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Bread + peppertop 16% of all pairs

Smell alikemoderate

Cooked together20,964 recipes

Shared aroma: 2-nonenal (fatty, green).
Bread + vinegartop 25% of all pairs

Smell alikemoderate

Cooked together1,672 recipes

Shared aroma: acetic acid (sour, vinegar).

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

What each ingredient does

Mackerel: Forms the main body of the dish and is cooked through by baking.
Bread crumbs: Absorb liquid and add body to the stuffing and the crumb topping.
Broth: Provides moisture so the fish stays tender while it bakes in the dish.
Catsup: Adds sweetness, acidity and color to the cooking liquid.
Vinegar: Adds acidity that sharpens flavor and balances the sweetness of the catsup.

“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.