1 lb. milk chocolate coating
1 lb. white chocolate coating
3/4 c. peanut butter

In separate container, melt each coating. (I do this in a microwave oven -watch it very carefully. If you don't have a microwave, use a double boiler.) Add the peanut butter to white coating and blend.

Spray a 9 x 13-inch pan with Pam. Pour milk coating into it and level off. Pour white coating/peanut butter mixture over this.

With a spoon, bring the milk coating from the sides to marbelize. Mixture will set up at room temperature. Cut into squares before completely set to prevent crumbling.

(These coatings can be purchased at stores selling candy/cake-making supplies.)