Ingredients
For Base & Crumble Topping:
- 1 stick 1/2 cup unsalted butter, melted
- 2 cups all-purpose flour
- 1/2 cup granulated sugar
- 1/2 tsp. baking powder
- Pinch of salt
- 1 large egg
For Crumble Topping:
- 1/3 cup old-fashioned rolled oats not quick or instant
For Apple Filling:
- 3-4 Granny Smith apples diced (about 4 cups)
- 1/4 cup all-purpose flour
- 1/4 cup granulated sugar
- 1/2 tsp. ground cinnamon
- 1/4 tsp. ground nutmeg
Instructions
Make Base:
- Preheat oven to 350°F. Grease an 8-inch square baking pan.
- In a bowl, mix melted butter with flour, sugar, baking powder and salt until combined.
- Stir in egg until dough forms.
- Reserve 1/3 of dough for topping. Press remaining 2/3 dough into prepared pan.
- Bake 15 minutes until lightly golden. Cool 5 minutes.
Make Apple Filling:
- In a bowl, toss together diced apples, flour, sugar, cinnamon and nutmeg.
Make Crumble Topping:
- Mix oats into reserved 1/3 dough until incorporated.
Assemble & Bake Bars:
- Spread apple filling over cooled crust.
- Crumble oat topping over apples.
- Bake 30-35 minutes until topping is deep golden brown.
- Cool completely before cutting into bars.