Combine biscuit baking mix, 1/4 cup sugar, and cinnamon. Add applesauce, milk, egg, and oil. Stir until just blended. Spoon into greased muffin tins, filling two-thirds full.
Bake in a 375° F oven for 12 to 15 minutes.
Cool slightly and remove from the muffin tins.
Combine 1/4 cup sugar and cinnamon. Dip the muffins in melted butter then in the sugar/cinnamon mixture. Place on a dish to serve.Servings: 1 dozen muffins