Why it works: Allspice and ginger match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 2,620 recipes. Both carry estragole, which smells anise, licorice. The science ↓
Mushroom Catsup
Ingredients
Directions
Salt the mushrooms
Break the mushrooms into a deep earthen pan.
Strew the salt among the mushrooms and cover with a cloth or paper.
Place in a cool oven overnight.
Make the ketchup
The next day, strain off the liquid and measure it.
Boil the liquid for 15 minutes.
For each quart of liquid, add the black pepper, allspice, ginger, and mace.
Boil the mixture fast for an additional 20 minutes.
Bottle
When thoroughly cold, bottle the catsup and cork well.
Seal the necks of the bottles with melted bottle cement to keep air out.
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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Allspice + gingertop 1% of all pairsSmell alikestrongCooked together2,620 recipes
Shared aroma: estragole (anise, licorice).
-
Pepper + allspicetop 5% of all pairsSmell alikestrongCooked together6,395 recipes
Shared aroma: estragole (anise, licorice).
-
Allspice + macetop 7% of all pairsSmell alikemoderateCooked together3,189 recipes
Shared aroma: methyleugenol (clove, spice).
-
Pepper + gingertop 9% of all pairsSmell alikestrongCooked together6,800 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Mushroom + peppertop 11% of all pairsSmell alikemoderateCooked together13,580 recipes
Shared aroma: 2-nonenal (fatty, green).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Mushrooms
- Provide the bulk and savoury, umami-rich liquid that becomes the ketchup.
- Coarse sea salt
- Draws moisture out of the mushrooms and helps preserve the liquid.
- Black pepper
- Adds sharp, pungent warmth and aroma to the simmered liquid.
- Allspice
- Contributes warm, clove-like aroma to the spiced liquid.
- Ginger
- Adds warm, fresh spice notes that lift the overall flavour.
- Mace
- Adds a delicate, nutmeg-like aroma to the finished sauce.
The step that matters
Bottle only when thoroughly cold. Bottling warm liquid traps steam and heat, which can build pressure and condensation inside the bottle. Letting the ketchup cool fully before corking keeps the seal sound and the sauce stable.
Swap the mace
How well each one fits the dish's main ingredients (mushroom, pepper, allspice, ginger):
- Clovefits better
- Thymefits better
- Turmericfits better
- Macethe original
Fit is the average pairing score against mushroom, pepper, allspice, ginger. 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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