Apple Pie Filling Coffee Cake I n the Test Kitchen, we love coffee cake and this is a super easy recipe. The cake starts with a cake mix but adding a little bit of cinnamon pumps up the flavor.

This fruit-filled coffee cake is perfect for summer. It's a moist, buttery cake with a fruity, tangy, and creamy filling. Each slice is bursting with blueberries. A light dessert for a hot summer day.