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 ↓
Tomato Rarebit
Ingredients
Directions
Make the sauce
Melt the butter in a saucepan.
Add the flour to the butter.
Add the cream, stirring until the mixture thickens.
Mix in the tomatoes and baking soda.
Finish and serve
Add the cheese.
Add the eggs.
Add the seasonings.
Stir until the cheese melts.
Serve on toasted crackers.
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).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + cheesetop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cheese + mustardtop 11% of all pairsSmell alikemoderateCooked together1,805 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
- Butter
- Enriches the sauce with fat and adds richness to the base.
- All-purpose flour
- Thickens the butter and cream into a smooth, stable sauce.
- Thin cream
- Provides liquid and moisture that the flour thickens into a creamy base.
- Cheese
- Melts into the sauce to give the rarebit its savory flavor and body.
- Eggs
- Set when heated, adding body and helping bind the cheese sauce.
The step that matters
Add the eggs to the warm sauce. Eggs can scramble if they meet high heat directly. Adding them slightly beaten to a warm, not boiling, mixture and stirring steadily lets them thicken gently and evenly.
Swap the tomato
How well each one fits the dish's main ingredients (butter, flour, cream, cheese, egg, mustard, pepper):
- Chivefits better
- Spinachfits better
- Horseradishfits better
- Tomatothe original
Fit is the average pairing score against butter, flour, cream, cheese, egg, mustard, 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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