2 cups fresh blackberries. Looking for some new ways for how to make angel food cake? 1/4 cup white granulated sugar. This Blackberry Angel Food Cake is the ultimate dessert! Just mix together 2 ingredients, pop it in the oven, and it’s done before you know it. 1 stick or 8 tablespoons or 1/2 cup butter, melted. 3 eggs. 1 (15.25 ounce) box super moist yellow cake mix. 1/2 cup milk. 1/2 cup sour cream. Trust me, this is the one dessert that … 1/2 cup chopped nuts, pecans or walnuts. Talk about easy! Blackberry Coffee Cake. 2 teaspoons ground cinnamon.