It’s delicious and something you can throw together quickly for your family! I like to drizzle a lemon glaze over … 78 comments on “Blueberry-Peach Coffee Cake” Mary Beth — July 1, 2020 @ 3:55 pm Reply. Sift together the flour, baking powder, and baking soda and set aside. A crisp-like oatmeal and cake mix crust rests on a divine mix of fresh or frozen blueberries and canned peaches. I make this recipe a couple times during fresh peach and blueberry season and again during the winter with frozen fresh fruit. No harder than making muffins really. Make a Peach Blueberry Dump Cake! Arrange peach slices and blueberries in single layer over the sugar. In large bowl, cream 1/2 cup butter with 3/4 cup granulated sugar until light and fluffy. The addition of fruit makes this a great way to lighten up the heavy sweetness and add little pops of juicy color. It’s an easy dessert that takes just moments to put together. This blueberry peach coffee cake is pretty simple to put together.