Apple cinnamon muffins

Ingredients

      2 cups  Bisquick baking mix
    3/4 cup  Apple; peeled and finely chop
    1/3 cup  Sugar
      2 tsp Cinnamon; ground
    1 egg
    2/3 cup  Milk
      2 tsp Oil or melted butter

For dusting:
      2 tsp Cinnamon; ground -extra mixed with 1 tsp brown sugar
Instructions
1.Preheat oven to 400F.
 
2.Grease bottom of 12 medium muffin cups.
 
3.Beat egg slightly and mixed with the wet ingredients . Then stir in remaining ingredients just till
moistened.
 
4.Divide batter evenly among muffin cups.
 
5.Bake till golden brown, 15 to 17 minutes.

6. Brush top with melted butter and sprinkle with cinnamon and brown sugar or you can pipe icing  .