Why it works: Tomato and pepper are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 17,923 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Spanish Steak
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Prepare the steak
Hack the round steak well on both sides with a sharp knife.
Place the steak in a baking pan.
Layer and bake
Spread a layer of parboiled and drained sliced onions over the steak.
Pour 1 pint of stewed tomatoes over the onions.
Sprinkle with 2 teaspoons of grated cheese and season with salt and pepper.
Bake in a moderate oven at 350°F (175°C) until the meat is tender.
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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Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + tomatotop 8% of all pairsSmell alikemoderateCooked together20,633 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Tomato + cheesetop 13% of all pairsSmell alikemoderateCooked together2,896 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + cheesetop 16% of all pairsSmell alikemoderateCooked together4,849 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Round steak
- Forms the main body of the dish; slow baking softens its firm connective tissue until tender.
- Onions
- Turn sweet and soft as they cook, and release moisture into the sauce.
- Stewed tomatoes
- Add moisture and acidity, forming the sauce that keeps the meat from drying out.
- Grated cheese
- Melts and browns on top, adding savory richness and color.
The step that matters
Bake until the meat is tender. Round steak is lean and full of tough connective tissue that softens only with long, moderate heat. Pulling the dish from the oven early leaves the meat chewy, so bake until a fork slides in easily.
Swap the onion
How well each one fits the dish's main ingredients (tomato, cheese, pepper):
- Capsicumfits better
- Potatofits better
- Eggplantfits better
- Onionthe original
Fit is the average pairing score against tomato, cheese, 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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