Name: Omelet, with Mushrooms
Ingredients: mushrooms; water or stock; pepper; coarse sea salt; lemon juice; flour

Why it works: Pepper and lemon match in chemistry and in kitchens. They rank in the top 3% of all ingredient pairs, and cooks put them together in 27,047 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓

Omelet, with Mushrooms

Ingredients

Directions

Boil the mushrooms in a little water or stock with pepper, coarse sea salt, and a few drops of lemon juice.
Once cooked, add a little flour to thicken the mixture slightly.
Incorporate some mushrooms into the omelet as you would with tomatoes.
Pour the remaining mushrooms and juice around the omelet.

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 + lemontop 3% of all pairs

Smell alikestrong

Cooked together27,047 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Mushroom + peppertop 11% of all pairs

Smell alikemoderate

Cooked together13,580 recipes

Shared aroma: 2-nonenal (fatty, green).
Mushroom + lemontop 15% of all pairs

Smell alikemoderate

Cooked together4,633 recipes

Shared aroma: 2-nonenal (fatty, green).
Lemon + flourtop 17% of all pairs

Smell alikemoderate

Cooked together30,404 recipes

Shared aroma: isobutyraldehyde (malty, green).
Mushroom + flourtop 18% of all pairs

Smell alikemoderate

Cooked together8,253 recipes

Shared aroma: isobutyraldehyde (malty, green).