Peanut butter chocolate bars

This is a fantastic treat that is super easy to throw together!  The kids devoured them at the lunch table Brenn said and requested for more later this week!!

~Recipe~
1 box yellow cake mix (yeah...I know...lame, but it is what the recipe called for)
1/2 cup butter, melted
1 cup creamy peanut butter
2 eggs
1 12 ounce chocolate chips, semi sweet
1 14 ounce can of sweet condensed milk
2 Tbsp butter
2 tsp vanilla

Preheat oven to 325
Combine the cake mix melted butter, peanut butter and eggs in a large bowl.  Press into a greased 9x13 baking pan.  Reserve 1 1/2 cups of this mixture to put on top.  In a small pot melt the chips, milk and butter.  Remove it from the heat once it is smooth and stir in the vanilla.  Spread the chocolate over teh batter.  Crumble the additional batter over the chocolate, evenly.  Bake for 20-25 minutes.  Cool and cut....wait...cool all the way...I know, I know, very tempting to dive in right away but I promise they need to cool! Enjoy!