Name: Baked Tomatoes
Ingredients: 6 smooth tomatoes; salt and pepper to taste; 6 tablespoons butter, divided; 6 tablespoons sugar, divided; 6 pieces of buttered toast

Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Baked Tomatoes

Oven, in the book's wordsA moderate oven

Ingredients

Directions

The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.

Prepare

Preheat the oven to 350°F (175°C).
Peel the tomatoes.

Assemble

Place the buttered toast in a baking dish.
Put one tomato on each piece of toast.
Top each tomato with a piece of butter the size of a walnut.
Sprinkle 2 to 3 tablespoons of sugar over the tomatoes, along with salt and pepper.

Bake and serve

Bake for 1.5 hours.
Serve hot.

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.

Tomato + peppertop 7% of all pairs

Smell alikemoderate

Cooked together17,923 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Butter + sugartop 17% of all pairs

Smell alikemoderate

Cooked together98,233 recipes

Shared aroma: guaiacol (smoky, sweet).
Pepper + buttertop 21% of all pairs

Smell alikemoderate

Cooked together85,593 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Tomato + buttertop 22% of all pairs

Smell alikemoderate

Cooked together6,918 recipes

Shared aroma: 3-hexenal (apple, fruity).
Pepper + sugartop 32% of all pairs

Smell alikelow

Cooked together19,401 recipes

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

Pepper and sugar barely smell alike, yet cooks put them together in 19,401 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

Tomatoes: Provide the juicy topping that softens and sweetens during baking.
Butter: Adds richness and moisture, helping the toast brown and carry the tomato flavor.
Sugar: Sweetens the tomatoes and helps them caramelize and brown in the oven.