1. Heat oven to 400 degrees F. Coat baking sheet with cooking spray. Mix flour, 1/3 cup sugar, baking powder, baking soda and salt. Cut in butter with pastry blender until crumbly. Stir in buttermilk, egg and diced strawberries. Knead few times to blend. Drop batter by 1/3 cups in 8 mounds onto baking sheet. Sprinkle with remaining tablespoon sugar.
2. Bake at 400 degrees F for 16 minutes until golden. Cool on rack.Strawberry Sauce:
3. Puree 1 quart hulled strawberries and 1/4 cup sugar in food processor. Strain.
4. Spoon 2 tablespoons sauce onto each of 8 plates. Slice each biscuit in half horizontally. Place bottom half on dishes. Spoon 1/4 cup berries on each. Dollop with whipped cream; cover with biscuit top. Garnish with cream and sauce. Makes 8 servings.