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 ↓
Macaroni Cheese
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Cook the macaroni
Break the macaroni into 1-inch lengths.
Cook the macaroni in boiling water for about 25 minutes until tender.
Drain the macaroni well.
Make the sauce
Melt the butter in a saucepan.
Add the flour to the melted butter to make a roux.
Gradually whisk in the milk or tomato pulp to create a sauce.
Mix the sauce with the cooked macaroni and three-quarters of the grated cheese.
Season the mixture with salt, cayenne, and lemon juice.
Bake and serve
Pour the mixture into a pie dish or soufflé dish.
Sprinkle the remaining cheese on top.
Bake in a 400°F (200°C) oven for about 10 minutes until nicely browned.
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.
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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 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 body of the dish, giving bulk and a tender bite once cooked.
- Grated cheese
- Melts into the sauce for richness and flavour, then browns on top.
- Butter
- Provides fat for the roux and adds richness to the sauce.
- Flour
- Thickens the butter and milk into a smooth sauce that coats the pasta.
- Milk or tomato pulp
- Forms the liquid base of the sauce, giving it body and moisture.
- Made mustard
- Adds a sharp savoury note that balances the richness of the cheese.
The step that matters
Gradually whisking in the milk. Adding the liquid slowly to the roux lets the starch disperse evenly, so the sauce thickens smoothly without lumps.
Swap the tomato
How well each one fits the dish's main ingredients (cheese, mustard, pepper, lemon, butter, flour, milk):
- Shallotfits better
- Asparagusfits better
- Broccolifits better
- Tomatothe original
Fit is the average pairing score against cheese, mustard, pepper, lemon, butter, flour, milk. 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.
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