Beat egg and milk together. Add dry mix and blend well. Stir in 1 tablespoon melted butter and mix thoroughly. Ladle onto 350 degree F. griddle and flip when air bubbles begin to pop. Turn once and cook until done. Repeat with remaining batter.
Melt 1 tablespoon butter in a medium large sauté pan. Core apple and slice about 1/2-inch thick. Add apple slices to sauté pan and cook until almost tender. Add Maple syrup and cinnamon. Sauté several minutes. Serve hot over pancakes.