Heat oven to 350ºF. Crush 5 mints in blender; mix with melted chocolate, sour cream and food colouring. Place 1/2 the remaining mints, about 4 inches apart, on baking sheet covered with parchment paper. Bake 5 min. or until mints melt to form 2-1/2- to 3-inch circles. Cool before removing from baking sheet. Repeat with remaining mints.