Why it works: Hazelnut and rum work together. They rank in the top 12% of all ingredient pairs, and 24 recipes mention both. Both carry 2-methylbutyraldehyde, which smells malty, chocolate. The science ↓
The recipe
Ingredients
Contains: milk, tree nuts (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Make the filling
Melt chocolate in double boiler or small bowl over hot water.
If chocolate should stiffen, stir in 1 to 2 tablespoons vegetable shortening until smooth.
Whip cream, add sugar and flavoring.
Fold in slightly cooled chocolate.
Chill until mixture is firm enough to form into balls.
Shape and store
Roll formed balls in finely chopped hazelnuts.
Chill until firm.
Store in refrigerator.
This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Hazelnut + rumtop 12% of all pairsAroma overlaplowMentioned together24 recipes
Shared aroma: 2-methylbutyraldehyde (malty, chocolate).
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Hazelnut + chocolatetop 3% of all pairsAroma overlapmoderateMentioned together350 recipes
Shared aroma: 2-acetyl-1-pyrroline (popcorn, roasted).
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Chocolate + rumtop 3% of all pairsAroma overlapstrongMentioned together285 recipes
Shared aroma: isoamyl acetate (banana, fruity).
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Chocolate + creamtop 5% of all pairsAroma overlapmoderateMentioned together5,463 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Cream + sugartop 5% of all pairsAroma overlapmoderateMentioned together43,437 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Semi-sweet chocolate pieces
- Provides the rich body and flavor of the candy as it sets.
- Heavy cream
- Whipped to add airy lightness and moisture to the chocolate filling.
- Roasted hazelnuts
- Add toasty aroma and a crunchy coating around the candy.
The step that matters
Fold in slightly cooled chocolate. If the chocolate is too hot, it can melt the whipped cream and deflate it, leaving a loose mixture. Cooling it slightly keeps the air in the cream so the filling holds its shape when chilled.
“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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