2 c. peanut butter, divided
3/4 c. (1 1/2 sticks) butter, softened
2 c. powdered sugar, divided
3 c. graham cracker crumbs
2 c. (12 oz. pkg.) semi-sweet chocolate mini morsels, divided

Grease 13 x 9-inch baking pan. Beat 1 1/4 cups peanut butter and butter in large mixer bowl until creamy. Gradually beat in 1 cup powdered sugar. With hands or wooden spoon, work in remaining powdered sugar, graham cracker crumbs and 1/2 cup morsels. Press evenly into prepared pan. Smooth top with spatula. Melt remaining peanut butter (1/2 cup) and remaining chocolate morsels (1 1/2 cups) in medium saucepan over lowest heat (double boiler), stirring constantly until smooth. Spread over graham cracker crust in pan.