1 cup packed brown sugar
1/2 cup quick cooking oats
3/4 cup butter, melted
2/3 cup sugar
3 tbsp cornstarch
1 1/4 cups cold water
3 cups diced peeled tart apples
1 tsp vanilla extract
- Preheat oven to 350F
- In a large bowl, combine the flour, brown sugar, oats and butter. Set aside 1 cup for crumble topping. Press remaining crumb mixture into an ungreased 9" pie plate; set pie plate aside.
- For filling, combine the sugar, cornstarch, and water in a large saucepan until smooth. Bring to a boil. Cook and stir for 2 minutes, or until completely thickened. Remove from the heat.
- Stir in apples and vanilla extract. Pour into crust; top with reserved crumb mixture and Bake for 40 to 45 minutes or until crust is golden brown.