# What You Need:
→ Crumble
01 - 2 cups all-purpose flour
02 - 1 cup granulated sugar
03 - 1/2 teaspoon baking powder
04 - 1/2 teaspoon ground cinnamon
05 - 1/4 teaspoon salt
06 - 1 cup unsalted butter, cold and cubed
07 - 1 large egg
→ Apple Filling
08 - 3 medium apples, peeled, cored, and diced
09 - 1/3 cup brown sugar
10 - 1 tablespoon lemon juice
11 - 1 teaspoon ground cinnamon
12 - 1 tablespoon cornstarch
# Steps:
01 - Preheat the oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a large bowl, mix flour, granulated sugar, baking powder, ground cinnamon, and salt.
03 - Add cold cubed butter and blend with a pastry cutter or fingers until the mixture resembles coarse crumbs.
04 - Stir in the egg until just combined; the dough will remain crumbly.
05 - Press two-thirds of the crumble mixture firmly into the bottom of the prepared pan to form an even layer.
06 - In a separate bowl, toss diced apples with brown sugar, lemon juice, ground cinnamon, and cornstarch until evenly coated.
07 - Spread the apple mixture evenly over the crust, then sprinkle the remaining crumble mixture on top, pressing gently.
08 - Bake for 38 to 42 minutes, until the top is golden brown and the apples are bubbling.
09 - Allow to cool completely in the pan before lifting out using the parchment overhang and slicing into bars.
