The topping is sugary and crunchy... perfect for this easy pie… It makes the blueberry filling creamy, almost custard-like. It all starts with my perfect pie crust recipe, which will give you amazing results every time.You could also use a store bought pie … Blueberry Cream Pie (Jess's Gramma) "This is a really simple old-fashioned pie recipe. This super easy Homemade Blueberry Pie Recipe is filled with plump blueberries, fresh lemon zest and a hint of cinnamon in a flakey pie crust.. We loved the addition of sour cream to the filling.