Why it works: Butter and milk 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 ↓
Peas and Rice
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.
Prepare
Preheat the oven to 400°F (200°C).
Butter a baking dish.
Layer the casserole
Layer 1½ cups of rice in the dish and season with butter, coarse sea salt, and pepper.
Add a layer of peas on top.
Cover with the remaining 1½ cups of rice and season again.
Make the sauce and bake
Melt the butter in a saucepan.
Stir in the flour until well blended.
Add 1 cup of the liquid from the peas and bring to a boil.
Stir in the milk and heat again.
Pour the mixture over the rice and peas in the baking dish.
Bake for 10 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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Rice + milktop 7% of all pairsSmell alikemoderateCooked together7,374 recipes
Shared aroma: 2-nonenal (fatty, green).
-
Peas + ricetop 9% of all pairsSmell alikemoderateCooked together1,434 recipes
Shared aroma: 2,4-nonadienal (fatty, green).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 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
- Rice
- Forms the bulk of the casserole and absorbs liquid as it bakes, giving it body.
- Flour
- Thickens the butter and liquid into a smooth sauce that binds the dish.
- Butter
- Adds richness and flavour to the rice and the sauce base.
- Milk
- Adds moisture and creaminess to the sauce.
- Peas
- Add a layer of sweetness and texture between the rice layers.
The step that matters
Making the sauce. Flour must be cooked into the melted butter and whisked until fully blended before the liquid is added, otherwise lumps form. Bringing the pea liquid to a boil thickens the starch so the sauce sets properly in the oven.
Swap the peas
How well each one fits the dish's main ingredients (butter, rice, flour, milk):
- Almondfits better
- Milletfits better
- Peanutfits better
- Peasthe original
Fit is the average pairing score against butter, rice, 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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