Cookie Dough Cupcakes

Cupcakes:

1 box chocolate or yellow cake mix

(and ingredients to prepare according to package directions

Filling:

8 Tbsp. butter (room temp)

3/4 cup packed brown sugar

2 1/4 cup flour

14 oz. can sweetened condensed milk

1 tsp. vanilla

1/2 cup mini chocolate chips

Frosting:

3 sticks butter

3/4 cup packed brown sugar

3 1/2 cups powdered sugar

1 cup flour

3/4 tsp. salt

3 Tbsp. milk

2 1/2 tsp. vanilla

Prepare cake mix according to package directions.  While baking, prepare Filling:  combine butter and sugar until fluffy.  Add flour, condensed milk and vanilla.  Mix.  Add chocolate chips.  Roll into balls and set in fridge until cupcakes are ready.  Once cupcakes are cooled cut a cone shape out of the top of each on (don't worry--this will look ugly but will be covered up with frosting) and set a cookie dough ball in the hole.  Cover with cone 'lid'.  Prepare frosting:  Mix butter and brown sugar.  Add powdered sugar and then the flour.  Add the salt, then milk, then vanilla.  Mix well.  Frost each cupcake then dip the top into the remaining chocolate chips to garnish.