Cinnamon Puff Muffins

Ah... Muffins , Who doesn't like them!!!! I must be in a cinnamon sugar phase cause everything cinnamon sugar calls my name (that and apricots... Random, huh?). Anyways, love these muffins, but I needed some more cinnamon sugar to satisfy my craving..... so lets get started....
INGREDIENTS 
1/3 cup butter, softened
1/2 cups sugar
1 egg
1 1/2 cups flour
1 1/2 tsp baking powder
1/2 tsp nutmeg
1/2 cup milk

**Topping**

1/4 cup butter, melted
1/2 cup sugar
1 tsp cinnamon

PROCEDURE

Cream together butter, sugar, and egg; set aside. Sift together flour, baking powder, and nutmeg. Add dry ingredients to butter mixture, alternating with the milk. Spoon into 12 well-greased muffin cups. Bake at 350°F for 13 to 15 minutes.

Topping: Combine sugar and cinnamon. Allow muffins to cool 5 minutes.
Dip tops in melted butter and then roll the tops in cinnamon mixture.