Preheat oven to 300 degrees. Reserve 1 1/2 cups dry cake mix. In large mixing bowl ... bowl blend cream cheese and sugar, add 3 eggs ... Store in the refrigerator.
Preheat oven to 350°F. Grease ... round pans. Blend cake mix, water, oil, eggs and ... 3/4 cup cream cheese frosting on top of layer. ... blackberry. Makes 12 servings.