# What You'll Need:
→ Fruit Filling
01 - 6 medium apples (Granny Smith or Braeburn), peeled, cored, and sliced
02 - 2 tablespoons lemon juice
03 - 1/3 cup granulated sugar
04 - 1 teaspoon ground cinnamon
05 - 1/2 teaspoon ground nutmeg
06 - 2 tablespoons all-purpose flour
→ Crumble Topping
07 - 1 1/4 cups all-purpose flour
08 - 1/2 cup cold unsalted butter, cubed
09 - 1/3 cup light brown sugar
10 - 1/3 cup rolled oats
11 - 1 teaspoon ground cinnamon
12 - Pinch of salt
# Steps:
01 - Preheat the oven to 350°F. Lightly grease a medium baking dish approximately 8 by 10 inches.
02 - In a large bowl, toss apple slices with lemon juice, granulated sugar, cinnamon, nutmeg, and all-purpose flour until evenly coated.
03 - Evenly spread the apple mixture in the prepared baking dish.
04 - In a separate bowl, blend flour, cold butter, brown sugar, rolled oats, cinnamon, and salt. Rub with fingertips until mixture forms coarse crumbs with some larger lumps to maintain rustic texture.
05 - Sprinkle the crumble topping evenly over the apple layer.
06 - Bake for 35 to 40 minutes until the topping is golden brown and the fruit filling bubbles at the edges.
07 - Allow to cool slightly before serving warm.