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Drink

B-51 I

A layered cocktail of Kahlua, Bailey's Irish Cream, and Frangelico.

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Why it works: Coffee and hazelnut work together. They rank in the top 8% of all ingredient pairs, and cooks put them together in 86 recipes. Both carry 2-ethyl-3,5-dimethylpyrazine, which smells roasted, earthy. The science ↓

B-51 I

Ingredients

Directions

  1. Shake and strain the drink.

  2. Layer the drink: pour Kahlua first, then Bailey's, then Frangelico on top.

Recipe from the Recipes Wiki (Fandom).

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 their aromas overlap, and how often cooks already put them together.

  1. Coffee + hazelnuttop 8% of all pairs
    Smell alikemoderate
    Cooked together86 recipes

    Shared aroma: 2-ethyl-3,5-dimethylpyrazine (roasted, earthy).

  2. Cream + coffeetop 17% of all pairs
    Smell alikelow
    Cooked together2,339 recipes

    Shared aroma: 2-heptanol (bitter, floral).

  3. Cream + hazelnuttop 17% of all pairs
    Smell alikemoderate
    Cooked together332 recipes

    Shared aroma: octanal (fat, soap).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Bailey's irish cream
Adds creamy richness and sweetness, forming the body of the layered drink.
Kahlua coffee liqueur
Adds coffee flavour and sweetness, and its density helps it sit at the bottom of the layers.
Frangelico hazelnut liqueur
Adds nutty, sweet aroma and flavour to the top layer.

The step that matters

Layering the drink. Liqueurs separate into layers based on their sugar and alcohol content, so pouring slowly over the back of a spoon in the stated order keeps the layers distinct. Pouring too fast or in the wrong order causes them to mix.

Swap the hazelnut

How well each one fits the dish's main ingredients (cream, coffee):

  1. Cocoafits better
  2. Hazelnutthe original
  3. Nutsfits less well
  4. Peanutfits less well

Fit is the average pairing score against cream, coffee. 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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