2 sticks butter
1 c. smooth peanut butter
1 c. graham cracker crumbs
1 c. powdered sugar
1 (12 oz.) pkg. chocolate chips

Melt butter, mix with peanut butter. Mix in graham cracker crumbs, then sugar. Stir until smooth - will be stiff. Spray 13x9 casserole dish with Pam. Pat mixture in bottom of dish evenly.

Melt 2 tablespoons Crisco. Add one 12 ounce package chocolate chips, stir until smooth and creamy. Pour over graham cracker-peanut butter mixture. Let set until firm. Leave at room temperature.