# What You Need:
→ Crumble Base & Topping
01 - 2 cups all-purpose flour
02 - 1 cup granulated sugar
03 - 1/2 teaspoon baking powder
04 - 1/4 teaspoon salt
05 - 1/2 teaspoon ground cinnamon
06 - 1 cup unsalted butter, cold and cubed
07 - 1 large egg
→ Apple Filling
08 - 4 medium apples, peeled, cored, and diced
09 - 2 tablespoons granulated sugar
10 - 2 tablespoons brown sugar
11 - 1 tablespoon all-purpose flour
12 - 1 teaspoon ground cinnamon
13 - 1/4 teaspoon ground nutmeg
14 - 2 teaspoons lemon juice
# Step-by-Step Directions:
01 - Preheat the oven to 350°F (175°C). Line a 9x9-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a large bowl, whisk together flour, sugar, baking powder, salt, and cinnamon. Incorporate the cold, cubed butter using fingertips until mixture resembles coarse crumbs.
03 - Add the egg and mix gently until just combined; mixture will remain crumbly.
04 - Press approximately two-thirds of the crumble mixture evenly into the bottom of the prepared baking pan to create the base layer.
05 - In a separate bowl, toss diced apples with granulated sugar, brown sugar, flour, cinnamon, nutmeg, and lemon juice until evenly coated.
06 - Spread the apple mixture evenly over the crumble base, then sprinkle the remaining crumble mixture over the apples to cover completely.
07 - Bake for 40 to 45 minutes until the topping is golden and apples are bubbling. Let cool completely in the pan before lifting out and slicing into bars.
