Why it works: Milk and butter 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 ↓
Macaroni Cheese
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Boil the macaroni
Boil plenty of salted water in a pot.
Add macaroni and cook for about 20 minutes until done.
Strain the macaroni.
Break the macaroni slightly with the edge of a bowl.
Assemble and bake
In a basin, combine macaroni, cheese, diluted milk, pepper, salt, beaten egg, and butter.
Transfer the mixture to a well-buttered baking dish.
Sprinkle more cheese and browned breadcrumbs on top.
Bake at 400°F (200°C) until golden brown.
If the top isn't browned enough, cover with a tin of hot embers.
Fan until done.
Avoid overbaking to prevent dryness.
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.
Photo for illustrative purposes only · Contact us to use it
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.
-
Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Cheese + milktop 10% of all pairsSmell alikemoderateCooked together4,426 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
-
Cheese + peppertop 18% of all pairsSmell alikemoderateCooked together7,861 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
- Macaroni
- Forms the bulk of the dish and gives it a firm, pasta-based structure.
- Cheese
- Provides rich flavour and melts into the sauce to bind the dish together.
- Milk
- Adds moisture and creaminess, turning the cheese into a smooth sauce.
- Egg
- Sets during baking, helping the custard-like mixture firm up and hold together.
- Butter
- Adds fat and richness, and helps keep the dish from sticking to the baking dish.
- Breadcrumbs
- Toast on top during baking, adding a crisp, golden browned crust.
The step that matters
Avoid overbaking. Egg proteins set as the dish heats, and prolonged baking squeezes out moisture, so the mac and cheese turns dry and grainy. Pull it once the top is golden and the centre is just set.
“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.
More macaroni and cheese recipes
You might also like
The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Cheese Making50 recipes
Cheese Fritters34 recipes
Cheese Omelette31 recipes
Rice and Cheese Casserole23 recipes