Preheat oven to 350° F.
Mix biscuit baking mix, the 1/3 cup sugar, water and egg until dough forms; gently smooth dough into a ball on surface generously dusted with baking mix. Knead 15 times. Roll dough into 12-inch square; cut into 4-inch squares. Spoon about 2 tsp cherries onto triangular half of each square. Fold dough over cherries, forming a triangle, press edges to seal.
Place on ungreased cookie sheet. Brush with butter; sprinkle with 1 to 2 tsp sugar. Bake until golden brown, 15 to 18 minutes.
Serve with whipped cream if desired.Servings: 8 scones