Apple Oat Crumble Pie has tender apple pieces with cinnamon and sugar topped with a crunch golden oat streusel with brown sugar.
Make this Easy Shortbread Crust Pastry
OR make a biscuit and butter base below.
The Filling
Oat streusel topping
Find it online: https://www.fillmyrecipebook.com/apple-oat-crumble-pie/