Why it works: Sugar and cream are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 43,450 recipes. Both carry 2,3-butanedione, which smells butter, sweet. The science ↓
Cold Custard, or Slip
Ingredients
Directions
Make the custard
Warm the milk in a saucepan.
Sweeten the milk with sugar and flavor it with peach oil or vanilla.
Stir the mixture well and pour it into a serving dish.
Add the rennet wine and stir to combine.
Set and serve
Set the dish aside to cool.
Serve with cream and sugar, or enjoy it plain if sweet enough.
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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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Milk + peachtop 10% of all pairsSmell alikemoderateCooked together781 recipes
Shared aroma: phellandrene (minty).
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Peach + winetop 14% of all pairsSmell alikemoderateCooked together218 recipes
Shared aroma: hexanal (green, grassy).
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Sugar + peachtop 17% of all pairsSmell alikelowCooked together2,308 recipes
Shared aroma: beta-damascenone (apple, rose).
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Milk + creamtop 18% of all pairsSmell alikemoderateCooked together29,399 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Milk
- Its proteins and fat set into a soft, creamy custard once rennet is added.
- Rennet wine
- Its rennet enzymes curdle the milk proteins so the mixture sets instead of staying liquid.
- Sugar
- Adds sweetness and balances the flavor of the milk.
- Peach oil or vanilla
- Adds aroma and flavor to the custard.
The step that matters
Adding the rennet wine. Rennet enzymes work best at mild warmth and can be weakened by too much heat, so the milk should be warm rather than hot when the rennet goes in. Stir just enough to combine, then leave the dish undisturbed so the custard can set.
Swap the peach
How well each one fits the dish's main ingredients (milk, sugar, wine, cream):
- Vanillafits better
- Strawberryfits better
- Figfits about as well
- Peachthe original
Fit is the average pairing score against milk, sugar, wine, cream. 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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