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Dessert

Filling for Blueberry Pie

A fruit filling for blueberry pie made with blueberries, sugar, flour, lemon juice, butter, and powdered sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 6 ingredients
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Why it works: Flour and butter are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Filling for Blueberry Pie

Ingredients

Directions

Prepare the filling

  1. Mix the blueberries, sugar, and flour together.

  2. Layer the mixture in the pie crust, alternating with layers of sugar and flour.

  3. Squeeze the lemon juice over the filling.

  4. Add small pieces of butter on top.

  5. Sprinkle powdered sugar on the top crust.

Bake

  1. Bake until the crust is a light golden brown.

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. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

  3. Lemon + buttertop 16% of all pairs
    Smell alikemoderate
    Cooked together41,227 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  4. Flour + lemontop 17% of all pairs
    Smell alikemoderate
    Cooked together30,404 recipes

    Shared aroma: isobutyraldehyde (malty, green).

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

    Shared aroma: guaiacol (smoky, sweet).

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

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

What each ingredient does

Blueberries
Provide the main fruit body and flavor of the pie filling.
Flour
Thickens the juices released by the blueberries as they heat.
Sugar
Sweetens the filling and helps draw out juice from the blueberries.
Lemon juice
Adds acidity that brightens the blueberry flavor.
Butter
Adds richness and fat to the filling as it melts during baking.

The step that matters

Layering the flour and sugar in the crust. Flour thickens the juices only when it is evenly distributed and heated; uneven layers can leave pockets of raw starch or a runny filling after baking.

Swap the lemon

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

  1. Raisinfits better
  2. Vanillafits better
  3. Figfits better
  4. Lemonthe original

Fit is the average pairing score against sugar, flour, butter. 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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