There are no oats in this version ... and even certain fruit crisps or cobblers. I’ve used this crumb topping for cherry pie, ...

For a full list of ingredients, check out the recipe card below. Here is how to make sourdough apple pie with oat streusel ...

Topped with a crunchy crumb topping, this pie is a delicious treat that is sure to impress your family and friends. Serve it warm with a scoop of vanilla ice cream for the ultimate dessert experience.