- 5 Cortland apples – peeled, cored, and sliced
- 3/4 cup all-purpose flour
- 3/4 cup rolled oats
- 1/2 cup packed brown sugar
- 3/4 teaspoon ground cinnamon
- 3/4 teaspoon ground nutmeg
- 1/2 cup butter at room temperature, cut into cubes
- Preheat oven to 375 degrees F (190 degrees C). Grease a 9-inch pie plate.
- Fill pie plate with apples, creating a slight mound.
- Combine flour, oats, brown sugar, cinnamon, and nutmeg in a large bowl. Cut in butter with a pastry blender or knife and fork until mixture is crumbly. Sprinkle over apples.
- Bake in the preheated oven until apples are tender and bubbling and top is lightly golden brown, 45 to 55 minutes. Let cool before slicing, about 15 minutes.