Why it works: Sauce and ketchup match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 1,099 recipes. Both carry ethanol, which smells alcoholic, ethereal. The science ↓
Grilled Beef on Toast
Ingredients
Directions
Cook the beef
Melt 1 tablespoon of butter in a skillet over medium heat.
Add slices of cold beef and heat through. If using scraps, chop coarsely first.
Make the sauce
In a separate bowl, mix 2 tablespoons hot water, 2 tablespoons butter, Worcestershire sauce, tomato ketchup, mustard, salt, pepper, and lemon juice.
If desired, finely chop the onion, brown it in 1 tablespoon of butter, and add to the sauce.
Thicken the sauce with 1 teaspoon of flour mixed with 1 teaspoon of butter.
Serve
Place hot buttered toast on a platter, top with grilled beef, and pour the sauce over.
Serve immediately while hot.
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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Sauce + ketchuptop 1% of all pairsSmell alikestrongCooked together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Pepper + lemontop 3% of all pairsSmell alikestrongCooked together27,047 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
-
Tomato + peppertop 7% of all pairsSmell alikemoderateCooked together17,923 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beef + tomatotop 8% of all pairsSmell alikemoderateCooked together5,448 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mustard + peppertop 9% of all pairsSmell alikemoderateCooked together15,430 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
- Beef
- Provides the main meaty substance that the sauce coats and is served over toast.
- Flour
- Thickens the sauce so it clings to the beef and toast instead of running off.
- Butter
- Adds richness and fat, carrying flavour and helping the beef brown lightly in the pan.
- Tomato ketchup
- Adds sweetness and acidity, giving the sauce its tangy, rounded flavour.
- Worcestershire sauce
- Adds savoury depth and a sharp, fermented note to the sauce.
- Mustard
- Adds sharpness and a pungent bite that balances the sweetness of the ketchup.
The step that matters
Thicken the sauce with flour and butter. Flour must be fully mixed with butter before it meets the liquid, otherwise it clumps. Cooking it briefly in the sauce swells the starch so the sauce thickens smoothly rather than staying thin or lumpy.
Swap the lemon
How well each one fits the dish's main ingredients (butter, beef, sauce, tomato, ketchup, mustard, pepper):
- Avocadofits about as well
- Limefits about as well
- Lemonthe original
- Mangofits less well
Fit is the average pairing score against butter, beef, sauce, tomato, ketchup, 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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