Name: Cheese Sandwich
Ingredients: Cheddar cheese, thinly sliced; Bread; Butter; Pepper; Coarse sea salt; Tomato, thinly sliced; Chilli, thinly sliced

Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Cheese Sandwich

Ingredients

Directions

Prepare

Cut thin layers of Cheddar cheese.
Spread butter on slices of bread.

Assemble

Place the cheese between the slices of bread.
Add a sprinkling of pepper and coarse sea salt.
Top with thin slices of tomato and chilli.

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.

Bread + buttertop 7% of all pairs

Smell alikemoderate

Cooked together27,232 recipes

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

Smell alikemoderate

Cooked together17,923 recipes

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

Smell alikemoderate

Cooked together2,436 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Bread + tomatotop 10% of all pairs

Smell alikemoderate

Cooked together1,013 recipes

Shared aroma: 2-nonenal (fatty, green).
Cheddar cheese + tomatotop 12% of all pairs

Smell alikemoderate

Cooked together1,865 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

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

What each ingredient does

Cheddar cheese: Melts or softens to give the sandwich its rich, savoury filling.
Bread: Provides the structure that holds the filling together.
Butter: Adds fat and richness to the bread, carrying flavour and helping it brown lightly.
Tomato: Adds moisture and a fresh, mildly acidic note against the cheese.

Swap the tomato

How well each one fits the dish's main ingredients (cheddar cheese, bread, butter, pepper):

Capsicumfits better
Potatofits about as well
Tomatothe original
Chivefits about as well

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

“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.