Delight in the flavors of summer with this Peach Blackberry Coffee Cake, a perfect treat for any occasion! Made with fresh peaches and blackberries, this moist cake has a rich buttery base and a crunchy oat topping. It's simple to whip up, requiring just 20 minutes of prep before baking. Serve it warm for breakfast or as a delightful dessert with whipped cream or ice cream on top. Ideal for coffee breaks or family gatherings, this cake will surely impress!
1 cup all-purpose flour
1/2 cup granulated sugar
1/4 cup brown sugar, packed
1 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsalted butter, softened
2 large eggs
1 teaspoon vanilla extract
1/2 cup sour cream
1 1/2 cups fresh peaches, diced (about 2 medium peaches)
1 cup fresh blackberries
1 teaspoon ground cinnamon (for topping)
1/4 cup rolled oats (for topping)
1/4 cup chopped walnuts or pecans (for topping)