Apple Spice Cupcakes with Caramel Frosting

Ingredients for Cupcakes
* 1 box yellow cake mix
* 1 teaspoon apple pie spice (or pumpkin pie spice, or your own spice mixture)

Ingredients for Caramel Frosting
* 1/2 cup butter
* 1 cup brown sugar
* 1/4 cup milk
* 1 tsp. vanilla
* 3-4 cups sifted powdered sugar

Directions for Caramel Frosting
1. In large saucepan, melt butter and add brown sugar. Bring this mixture to a boil, stirring frequently. Boil and stir for 1 minute until thickened.
2. Remove from heat and add milk. Beat with wire whisk until smooth.
3. Add vanilla and beat again for another minute.
4. Add enough powdered sugar until of desired spreading consistency
5. Let cool and serve.