Name: Mutton Hash Au Gratin
Ingredients: leftover mutton; potatoes; butter; milk; cheese; salt; pepper

Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓

Mutton Hash Au Gratin

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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Preheat the oven to 350°F (175°C).
Chop the leftover mutton and boil the potatoes until tender.
Mash the potatoes and mix with butter, milk, salt, and pepper.
Layer the mutton in a baking dish, then spread the potato mixture on top.
Sprinkle cheese over the top and bake for 30 minutes until golden brown.

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.

Butter + milktop 7% of all pairs

Smell alikemoderate

Cooked together81,283 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Butter + cheesetop 8% of all pairs

Smell alikemoderate

Cooked together7,962 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Potato + peppertop 9% of all pairs

Smell alikemoderate

Cooked together8,305 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Potato + milktop 9% of all pairs

Smell alikemoderate

Cooked together3,611 recipes

Shared aroma: (e,z)-2,6-nonadienal (cucumber, melon).
Milk + cheesetop 10% of all pairs

Smell alikemoderate

Cooked together4,426 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).

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

Swap the potato

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

Potatothe original
Capsicumfits about as well
Tomatofits less well
Asparagusfits less well

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