Oatmeal Apple Pie Bars Oatmeal Apple Pie Crumb Bars with buttery shortbread crust, apple cinnamon filling and a delightful crumble topping. Easy to prepare! Quick and delicious, this apple crisp uses ...
Dutch apple pies are finished with a streusel — a sweet, crunchy crumb topping made with flour, sugar, and butter. For this pie recipe, we add chopped walnuts to the streusel for flavor and crunch.