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 ↓
Stuffed Onions
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.
Prepare the onions
Preheat the oven to 350°F (175°C).
Peel the onions and remove the centers to create a hollow space.
In a bowl, mix the sausage, bacon, bread crumbs, salt, pepper, and 1 tablespoon of cream.
Stuff the onions with the meat mixture.
Bake
Place the stuffed onions in a baking pan and pour melted butter over them.
Bake for 1 hour, basting often with the melted butter.
Once cooked, carefully remove the onions from the pan.
Make the sauce and serve
In the baking pan, squeeze in the lemon juice and add the browned flour.
Bring the mixture to a boil, then stir in 4 tablespoons of cream.
Pour the sauce over the stuffed onions before serving.
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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Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Bread + buttertop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Cream + buttertop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Onions
- Form the hollow shell that holds the stuffing and softens as it bakes.
- Sausage
- Provides the main meat filling and savory richness.
- Bread crumbs
- Absorb juices and help bind the stuffing so it holds its shape.
- Butter
- Adds fat and moisture, and helps the onions brown while basting.
- Browned flour
- Thickens the pan juices into a sauce.
- Cream
- Adds richness and body to the filling and the sauce.
The step that matters
Bring the sauce to a boil before adding the cream. Boiling the pan juices with the browned flour thickens them. Adding cream afterward keeps it smooth and rich, and boiling cream for too long can cause it to separate or thicken unevenly.
Swap the lemon
How well each one fits the dish's main ingredients (onion, meat, bread, pepper, cream, butter, flour):
- Avocadofits better
- Coconutfits about as well
- Figfits about as well
- Lemonthe original
Fit is the average pairing score against onion, meat, bread, pepper, cream, butter, flour. 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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