Chocolate Sandwich Cookies with Cream Cheese Filling

This cookies are based on a recipe from this cookbook, only with slight ingredient and method alterations and a completely different filling.  THESE ARE NUMMY so get your noms on.  They are quick and easy to make and you won't regret it.  Besides, just look how adorable they are.  Who wouldn't want to grab one of these at a party?

Chocolate Cookies 
1 1/4 sticks of unsalted butter
1 1/2 cups sugar
1 egg
1 1/4 cups flour
3/4 cups unsweetened cocoa powder
1 tsp baking soda
1/2 tsp baking powder
1/4 tsp salt

Preheat oven to 375ºF. Beat butter and sugar until fluffy.  Add egg and beat until nearly white.  Combine dry ingredients separately, then add to butter mixture.  Beat together until well-combined.  Roll into 20 2-inch balls.  Roll in sugar, place on a cookie sheet and then flatten.  Bake for 8 minutes or until cracked.  Remove from oven and cool completely on rack.  Sandwich cream cheese filling between cookies (flat sides together).  Serve immediately, or store in refrigerator in sealed container.

Cream Cheese Filling
1 1/2 cups confectioner's sugar
8oz cream cheese
3 Tbsp salted butter
1 tsp vanilla

Beat together until smooth and fluffy.