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Dessert

Hazel Nut Tarts

A tart with a hazelnut crust, rum‑flavored filling, and a confectioner's sugar frosting.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 12 ingredients
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Why it works: Bread and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 27,232 recipes. Both carry delta-decalactone, which smells sweet, creamy. The science ↓

Hazel Nut Tarts

Ingredients

Directions

The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.

Prepare the layers

  1. Preheat the oven to 350°F (175°C).

  2. Mix powdered sugar and egg yolks in a bowl. Add rum, ground hazelnuts, bread crumbs, and egg whites to the mixture.

  3. Divide the mixture into two layers.

  4. Bake the layers.

Make the filling

  1. For the filling, boil milk, sugar, and butter in a saucepan.

  2. Remove from heat and stir in reserved hazelnuts, bread crumbs, and rum.

Make the frosting

  1. For the frosting, combine confectioner's sugar with cream until stiff. Flavor the frosting with almond or vanilla extract.

Recipe from a historical cookbook (Internet Archive).

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.

  1. Bread + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together27,232 recipes

    Shared aroma: delta-decalactone (sweet, creamy).

  2. Milk + buttertop 7% of all pairs
    Smell alikemoderate
    Cooked together81,283 recipes

    Shared aroma: (z)-4-heptenal (biscuit, cream).

  3. Butter + creamtop 8% of all pairs
    Smell alikemoderate
    Cooked together41,516 recipes

    Shared aroma: delta-dodecalactone (sweet, creamy).

  4. Sugar + creamtop 9% of all pairs
    Smell alikemoderate
    Cooked together43,450 recipes

    Shared aroma: 2,3-butanedione (butter, sweet).

  5. Bread + milktop 11% of all pairs
    Smell alikemoderate
    Cooked together11,466 recipes

    Shared aroma: 2-undecenal (sweet).

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

What each ingredient does

Hazelnuts (in the method)
Provide the main nutty flavor and body of the layers and filling.
Egg yolks
Add richness and help bind the batter together.
Egg whites
Trap air to give the layers lift and a lighter texture.
Bread crumbs
Add bulk and soak up moisture, giving the layers and filling body.
Confectioner's sugar
Sweetens and stiffens the frosting when combined with cream.

The step that matters

Stir reserved hazelnuts, bread crumbs, and rum into the hot milk mixture. Adding the nuts and crumbs off the heat lets them thicken the filling gently without scorching. Stirring in the rum off the heat keeps its aroma from cooking off too quickly.

Swap the nuts

How well each one fits the dish's main ingredients (sugar, egg, bread, rum, milk, butter, cream):

  1. Almondfits better
  2. Pecansfits better
  3. Cocoafits better
  4. Nutsthe original

Fit is the average pairing score against sugar, egg, bread, rum, milk, butter, 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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