Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Rich Chocolate Syrup for Desserts or Ice Cream
Ingredients
Directions
Make the syrup
Place grated chocolate in a double boiler and melt it.
Gradually add the sugar, then the corn syrup and milk, stirring constantly.
Once smooth, stop stirring and let it cook in the double boiler for 45 minutes.
Finish and cool
Remove from heat, add butter and salt, then cool before serving.
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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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Milk + corntop 10% of all pairsSmell alikemoderateCooked together6,955 recipes
Shared aroma: hexanal (green, grassy).
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Chocolate + sugartop 13% of all pairsSmell alikemoderateCooked together15,404 recipes
Shared aroma: guaiacol (smoky, sweet).
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Chocolate + milktop 13% of all pairsSmell alikemoderateCooked together9,128 recipes
Shared aroma: gamma-nonanolactone (coconut, sweet).
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Butter + corntop 14% of all pairsSmell alikemoderateCooked together7,345 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Bitter chocolate
- Provides the main chocolate flavor and body of the syrup.
- Granulated sugar
- Adds sweetness and thickens the syrup as it cooks.
- Corn syrup
- Inhibits sugar crystallization, keeping the syrup smooth and glossy.
- Rich milk
- Adds creaminess and moisture, softening the syrup's texture.
- Butter
- Adds fat for a smooth, rich mouthfeel and a glossy finish.
The step that matters
Stop stirring once smooth. Stirring after the sugar dissolves can encourage sugar crystals to form, leaving the syrup grainy. Holding it still during the long gentle cook keeps it smooth.
“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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