3 blueberry streusel lemon filling Recipes

unsalted butter, softened, all-purpose flour, old fashioned oats (not quick oats), light brown sugar, salt, baking powder, egg, separated, sweetened condensed milk, fresh lemon juice, grated lemon zest, room temperature blueberries

margarine, brown sugar, flour, prepared blueberry pie filling, lemon zest, margarine, brown sugar, flour, rolled oats, cinnamon