Peach Crumble Bar

Ingredients
- cooking spray
Crumble and Crust:
- 1 ½ cups all-purpose flour
- ½ cup white sugar
- ½ teaspoon baking powder
- 1 pinch salt
- 10 tablespoons cold unsalted butter, cut into cubes
- 1 large egg yolk
- 1 tablespoon cold water
Peach Filling:
- 2 cups fresh peach slices, or more to taste
- ½ cup white sugar
- 2 tablespoons all-purpose flour
- 1 tablespoon lemon juice
- 1 teaspoon vanilla extract
- ¼ teaspoon ground cinnamon
- ¼ teaspoon ground nutmeg
Directions
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Preheat the oven to 375 degrees F (190 degrees C). Coat an 8×8-inch baking pan with cooking spray.
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Whisk flour, sugar, baking powder, and salt together in a bowl. Next, cut in the cold butter using 2 forks or a pastry cutter then slowly mix in the egg yolk and cold water. Don’t worry if the dough seems really crumbly; it should be!
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Press 1/2 of the crumble mixture into the prepared pan to make the crust. Save the rest for the top of the bars.
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Stir together peach slices, sugar, flour, lemon juice, vanilla extract, cinnamon, and nutmeg until combined. Evenly add peach filling to the top of the crust.
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Sprinkle the remaining crumble over the peach filling.
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Bake in the preheated oven until golden brown and set, 30 to 38 minutes. Cool bars to room temperature, then cut and serve.