Name: Baked Stuffed Tomatoes
Ingredients: large ripe tomatoes; bread crumbs; butter; coarse sea salt; black pepper; sugar; grated onion (optional); parsley for garnish

Why it works: Pepper and parsley match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓

Baked Stuffed Tomatoes

Oven, in the book's wordsA slow oven

Ingredients

Directions

The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.

Preheat the oven to 300°F (150°C).
Remove the stem from the tomatoes and cut off a slice from the stem end.
Core the tomatoes and place them in a baking dish.
Fill the tomatoes with bread crumbs mixed with butter, salt, pepper, sugar, and grated onion if desired.
Replace the tops of the tomatoes and bake until done.
Carefully remove the tomatoes from the baking dish and arrange on a serving plate.
Garnish with sprigs of parsley.

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.

Pepper + parsleytop 2% of all pairs

Smell alikestrong

Cooked together34,122 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

Shared aroma: delta-decalactone (sweet, creamy).
Tomato + peppertop 7% of all pairs

Smell alikemoderate

Cooked together17,923 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Tomato + oniontop 8% of all pairs

Smell alikemoderate

Cooked together20,633 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Tomato + parsleytop 8% of all pairs

Smell alikemoderate

Cooked together5,398 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).

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

Swap the onion

The recipe marks onion as optional. How well each one fits the dish's main ingredients (tomato, bread, butter, pepper, sugar, parsley):

Capsicumfits better
Carrotfits better
Potatofits better
Onionthe original

Fit is the average pairing score against tomato, bread, butter, pepper, sugar, parsley. Candidates are from the same food group and used in at least 100 recipes.