Apple Crumble Squares

Apple Crumble Squares is a medium French recipe that serves 9. 430 calories per serving. Recipe by JustInCooking on YouTube.

Prep: 2 hrs 25 min | Cook: 1 hr 20 min | Total: 4 hrs 5 min

Cost: $6.04 total, $0.67 per serving

Ingredients

  • 200 g All‑purpose flour (for the short‑crust base)
  • 30 g Potato starch (adds tenderness to the crust)
  • 50 g Granulated sugar (for the crust)
  • 0.5 g Salt (pinch, enhances flavor)
  • 100 g Unsalted butter (softened) (cut into small dice for the crust)
  • 5 ml Apple cider vinegar (helps bind the dough)
  • 30 ml Cold water (adjust dough consistency)
  • 1 Egg yolk (adds richness to the crust)
  • 3 Apples (e.g. Granny Smith or Golden) (peeled, cored and cut into 2 cm cubes)
  • 30 g Unsalted butter (for caramel) (for sautéing the apples)
  • 50 g Granulated sugar (for caramel) (creates the caramel coating)
  • 1 Vanilla bean (seeds scraped into the apple mixture)
  • 80 g All‑purpose flour (for crumble) (combined with almond powder)
  • 80 g Almond powder (ground almonds) (gives the crumble a nutty flavor)
  • 80 g Brown sugar (cassonade) (sweetens the crumble)
  • 5 g Ground cinnamon (adds warm spice to the crumble)
  • 80 g Unsalted butter (cold, for crumble) (cut into small dice; keep cold)

Instructions

  1. Make the short‑crust dough

    In a large mixing bowl combine 200 g flour, 30 g potato starch, 50 g sugar, and a pinch of salt. Add 100 g softened butter cut into small dice and mix until the mixture resembles coarse sand. Stir in 5 ml apple cider vinegar, 30 ml cold water and one egg yolk, then mix with a hand mixer or by hand until a smooth, creamy dough forms.

    Time: PT15M

  2. Chill the dough

    Shape the dough into a ball, wrap tightly in plastic wrap and refrigerate for at least 1 hour to firm up.

    Time: PT1H

  3. Pre‑bake the crust

    Preheat the oven to 180 °C (fan‑forced). Butter a 20 cm square pan, line with parchment paper, and press the chilled dough evenly into the base. Smooth the surface with a spatula. Bake for 15 minutes until lightly golden.

    Time: PT15M

    Temperature: 180°C

  4. Prepare the caramelized apples

    Peel, core and cut the apples into 2 cm cubes. In a large sauté pan melt 30 g butter, add 50 g sugar and stir until it begins to foam. Add the apple cubes, sprinkle the seeds of one vanilla bean, and cook over medium heat for about 15 minutes, stirring occasionally, until the apples are tender and golden.

    Time: PT25M

  5. Cool the base and apples

    Remove the pre‑baked crust from the oven and let it cool on a rack for 10 minutes. Allow the caramelized apples to cool slightly as well, then spread them evenly over the crust, pressing gently to create a flat surface.

    Time: PT10M

  6. Bake with the apples

    Return the pan to the oven and bake for 30 minutes at 180 °C until the apples are set and the edges of the crust are golden.

    Time: PT30M

    Temperature: 180°C

  7. Prepare the almond crumble topping

    In a bowl combine 80 g flour, 80 g almond powder, 80 g brown sugar and 5 g ground cinnamon. Add the cold 80 g butter diced and rub it into the dry ingredients with fingertips until the mixture resembles coarse crumbs. Do not over‑work.

    Time: PT10M

  8. Chill the crumble

    Place the crumble mixture in the refrigerator for about 10 minutes so it stays cold while the second bake begins.

    Time: PT10M

  9. Add crumble and final bake

    Scatter the cold crumble evenly over the baked apples. Return the pan to the oven and bake for 20 minutes at 180 °C, or until the crumble is golden brown and crisp.

    Time: PT20M

    Temperature: 180°C

  10. Cool, demould and serve

    Allow the finished crumble to cool completely at room temperature (about 30 minutes). Gently remove the parchment paper and cut the square into nine even pieces. Serve warm or at room temperature.

    Time: PT30M

Nutrition Facts

Calories
430
Protein
4.5 g
Carbohydrates
48 g
Fat
32 g
Fiber
1.4 g

Dietary info: Vegetarian, Contains nuts, Contains gluten

Allergens: Egg, Milk (butter), Tree nuts (almond), Gluten

Last updated: March 19, 2026

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Apple Crumble Squares

Recipe by JustInCooking

A French‑style apple crumble made in a buttery short‑crust base, topped with caramelized apples and a crunchy almond crumble. Perfect for a sweet snack or dessert, this recipe yields nine elegant squares.

MediumFrenchServes 9

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
1h 55m
Prep
1h 50m
Cook
27m
Cleanup
4h 12m
Total

Cost Breakdown

$6.04
Total cost
$0.67
Per serving

Critical Success Points

  • Achieving a coarse‑sand texture for the crust dough without over‑mixing.
  • Caramelizing the apples until they are golden but not burnt.
  • Ensuring the crumble remains coarse; over‑working creates a dough instead of a crumbly topping.
  • Baking until the crumble is golden – under‑baking leaves it soggy, over‑baking makes it bitter.

Safety Warnings

  • Handle hot pans and oven with oven mitts to avoid burns.
  • Caramelized sugar is extremely hot; stir carefully and keep children away.
  • Use a sharp knife for peeling and cutting apples to prevent slips.

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