Why it works: Onion and pepper are a kitchen classic. They rank in the top 11% of all ingredient pairs, and cooks put them together in 68,474 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Meat Loaf, Brown Gravy
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.
Prepare
Preheat the oven to 350°F (175°C).
In a bowl, mix ground meat, breadcrumbs, chopped onion, egg, milk, salt, and pepper until well combined.
Shape the mixture into a loaf and place it in a baking dish.
Bake and serve
Bake for 1 hour or until cooked through.
Serve with brown gravy poured over the top.
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.
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Meat + oniontop 17% of all pairsSmell alikelowCooked together6,364 recipes
Shared aroma: 2,4-decadienal (seaweed).
-
Egg + milktop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Meat + milktop 18% of all pairsSmell alikemoderateCooked together2,703 recipes
Shared aroma: 1-octen-3-one (mushroom, metallic).
-
Meat + peppertop 19% of all pairsSmell alikelowCooked together8,777 recipes
Shared aroma: 2,4-decadienal (seaweed).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Ground meat
- Provides the main body and savory flavor of the loaf.
- Breadcrumbs
- Absorb liquid and help the loaf hold together while keeping it tender.
- Egg
- Binds the mixture so the loaf holds its shape when sliced.
- Milk
- Adds moisture, keeping the loaf from drying out as it bakes.
- Onion
- Adds moisture and aromatic sweetness to the meat mixture.
The step that matters
Shape the mixture into a loaf. Mixing until just combined and shaping gently keeps the meat tender; overworking it develops a firm, dense texture as the proteins bind.
Swap the onion
How well each one fits the dish's main ingredients (meat, egg, milk, pepper):
- Capsicumfits better
- Potatofits better
- Asparagusfits better
- Onionthe original
Fit is the average pairing score against meat, egg, milk, 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.
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