Scrumptious Blackberry Chocolate Coffee Cake

1. Preheat oven to 350F degrees. Spray a 9-inch baking pan with nonstick spray. Set aside. 2. Make the streusel by gently mashing up 2 T of cold butter in a small bowl. Add 1/4 cup all-purpose flour and 1/4 cup sugar and mix around with a fork until well combined and crumbly. Set aside. 3. In a large bowl, add 3/4 cup sugar, 1/4 cup butter, milk, vanilla extract, baking powder, and egg. Slowly beat in flour just until everything is combined. 4. Spread half of the batter into the prepared baking pan. Layer with half of the streusel, then 3/4 of the blackberries and chips. Repeat with the rest of the batter and the streusel. Top with remaining berries and chips. 5. Bake for 45-50 minutes, covered. Monitor closely for the last few minutes, and remove when an inserted toothpick comes out clean. The cake has the possibility of becoming too dry if left in too long, even a few minutes too long.