Cool Peppermint Pattie Cake

1 box Betty Crocker Supermoist triple chocolate fudge cake mix,

Filling

1 box (4 serving) white chocolate instant pudding/pie filling mix

2 cups milk

½ tsp peppermint extract

Frosting

¼ tsp peppermint extract

1 container milk chocolate frosting

¾ cup chocolate-covered peppermint patties, coarsely chopped

Heat oven to 350 degrees.  Make cake as directed for a 13x9 pan.  Cool for 15 minutes.  About every ½ inch or so, poke wholes on top of cake.  In medium bowl, beat filling ingredients with wire whisk.  Pour over cake.  Cover loosely and chill about 2 hours.  In a small bowl, stir ¼ tsp peppermint extract into chocolate frosting.  Spread frosting over cake.  Sprinkle with peppermint patties.