Why it works: Rice and tomato match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 3,065 recipes. Both carry trans-2-nonenal, which smells cardboard, fatty. The science ↓
Stuffed Peppers
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 peppers
Remove the stem ends and seeds from the peppers.
Scald the peppers in water for 5 to 8 minutes, then drain.
Make the filling
For the filling, mix the cooked rice with salt, pepper, and butter.
If using, add minced lamb, veal, or chicken to the rice mixture.
For a tomato filling, mix stewed tomatoes and grated onion pulp with the rice.
Fill the peppers about two-thirds full with the mixture.
Top each pepper with buttered bread crumbs.
Bake
Place the peppers closely together in a deep baking dish.
Add ½ cup of stock or water to the dish.
Cover and bake in a preheated oven at 350°F (175°C) for 10 minutes.
Uncover and bake for an additional 15 minutes.
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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Rice + tomatotop 6% of all pairsSmell alikestrongCooked together3,065 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Butter + breadtop 7% of all pairsSmell alikemoderateCooked together27,232 recipes
Shared aroma: delta-decalactone (sweet, creamy).
-
Pepper + tomatotop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + oniontop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Rice + oniontop 9% of all pairsSmell alikemoderateCooked together10,433 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
- Green peppers
- Hold the filling and soften as they bake, becoming tender in the steam.
- Cooked rice
- Forms the bulk of the filling, absorbing butter and juices to stay moist.
- Butter
- Adds richness and moisture to the rice and browns the bread crumb topping.
- Buttered bread crumbs
- Form a golden topping that browns in the oven and adds a crisp texture.
- Stock or water
- Creates steam in the covered dish so the peppers cook through gently.
The step that matters
Covering the dish for the first bake. Covering traps steam so the peppers soften evenly; uncovering afterward lets the bread crumb topping brown rather than stay soggy.
Swap the tomato
The recipe marks tomato as optional. How well each one fits the dish's main ingredients (pepper, rice, butter, lamb, onion, bread):
- Potatofits about as well
- Asparagusfits about as well
- Tomatothe original
- Capsicumfits about as well
Fit is the average pairing score against pepper, rice, butter, lamb, onion, bread. 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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