Name: Potato Rice
Ingredients: 2 cups cooked rice; 2 cups mashed potatoes; Salt to taste; Pepper to taste; Butter for greasing

Why it works: Rice and potato match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 851 recipes. Both carry 2-acetyl-1-pyrroline, which smells popcorn, roasted. The science ↓

Potato Rice

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).

Make the casserole

In a bowl, combine the cooked rice and mashed potatoes. Season with salt and pepper.
Transfer the mixture to a greased baking dish.

Bake

Bake for 30 minutes until heated through and slightly golden on top.

Recipe from a historical cookbook (Internet Archive).

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.

Rice + potatotop 7% of all pairs

Smell alikestrong

Cooked together851 recipes

Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
Potato + peppertop 9% of all pairs

Smell alikemoderate

Cooked together8,305 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Rice + peppertop 12% of all pairs

Smell alikemoderate

Cooked together8,379 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).
Potato + buttertop 13% of all pairs

Smell alikemoderate

Cooked together6,456 recipes

Shared aroma: (z)-4-heptenal (biscuit, cream).
Rice + buttertop 16% of all pairs

Smell alikemoderate

Cooked together9,645 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cooked rice: Forms the body of the casserole and absorbs moisture as it heats.
Mashed potatoes: Adds creaminess and binds the rice together as the dish bakes.