Preheat oven to 350 degrees.
Line a 9x13 inch baking pan with nonstick foil.
Cream butter and sugar together in mixer. Add peanut butter and beat. Add eggs and vanilla.
Add flour, oats, baking powder, and salt.
Stir in chocolate chips, peanut butter chips and toffee.
Press 2/3 of the cookie dough on the bottom of the pan. Place all filling ingredients in a microwave safe bowl and microwave in 30 second increments until smooth. Stir in between!
Pour caramel mixture evenly over the dough.
Drop the remaining dough on top using your hands. (Like a crumble, a little here, a little there)
Bake for about 30 minutes. Let cool completely and cut into bars.
