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Dessert

Blackberry Jam Custards

A custard made with eggs, blackberry jam, sugar, butter, baked in a pastry shell and topped with meringue or cream icing.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 7 ingredients
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Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Blackberry Jam Custards

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. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.

Prepare

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

Make the filling

  1. Beat the eggs in a bowl, then mix in blackberry jam, sugar, and melted butter until well combined.

  2. Pour the mixture into a prepared pastry shell.

Bake and finish

  1. Bake in the oven until set, about 25–30 minutes.

  2. Top with meringue or cream icing if using yolks only.

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

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

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

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

  3. Blackberry + buttertop 13% of all pairs
    Smell alikemoderate
    Cooked together522 recipes

    Shared aroma: gamma-undecalactone (peach, sweet).

  4. Egg + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together118,967 recipes

    Shared aroma: decanal (soap, orange peel).

  5. Sugar + buttertop 17% of all pairs
    Smell alikemoderate
    Cooked together98,233 recipes

    Shared aroma: guaiacol (smoky, sweet).

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

What each ingredient does

Eggs
Set the custard into a sliceable structure as their proteins coagulate with heat.
Blackberry jam
Adds fruit flavor, sweetness, and moisture to the filling.
Sugar
Sweetens the custard and softens its texture slightly.
Butter
Adds richness and a tender, smooth mouthfeel to the filling.

The step that matters

Bake until just set. Egg proteins coagulate as the custard heats, so it sets. Underbaking leaves the filling runny, while overbaking pushes the eggs too far, making the custard grainy, curdled, and prone to weeping.

Swap the blackberry

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

  1. Vanillafits better
  2. Strawberryfits about as well
  3. Raspberryfits about as well
  4. Blackberrythe original

Fit is the average pairing score against egg, sugar, 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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