Tender yellow cake layers with fresh blueberries, streusel filling and blueberry buttercream.
Preheat the oven to 350 degrees F. Prepare three 8-inch or four 6-inch round cake pans with butter or non-stick spray, parchment and another coat of spray. Set aside.
Evenly distribute the cake batter among the pans and bake for 25-30 minutes or until a toothpick inserted into the middle of the cakes comes out clean or with just a few crumbs. Make sure not to over bake.