Makes 12 Servings
4 ½ cups Original Bisquick
Heat oven to 450.
Butter bottom and sides of rectangular baking dish 13x9x2 inches. Stir Bisquick and 1 1/3 cups milk in large bowl with spoon until soft dough forms. Drop dough by heaping tablespoonfuls onto ungreased large cooking sheet. Bake 8 to 10 minutes or until golden.
Break up biscuits into random-sized pieces; spread in baking dish. Sprinkle with grated baking bars. Beat remaining ingredients except berries and Berry Sauce in large bowl with electric mixer on low speed until blended. Pour over biscuits in baking dish. Cover and refrigerate at least 8 hours but no longer than 24 hours.
Heat oven to 350 . Stir frozen raspberries and blueberries into biscuit mixture. Bake about 1 hour or until top is golden and toothpick inserted in center comes out clean. Serve warm with Berry Sauce. Garnish with fresh berries. Store covered in refrigerator.
1/3 cup sugar
Stir together sugar and Bisquick in 1-quart saucepan. Stir in remaining ingredients. Cook over medium heat, stirring constantly, until mixture thickens and boils. Boil and stir 1 minute; remove from heat.