1 pkg chocolate chips
2 1/2 cups graham cracker crumbs (2 1/2 sleeves–if the box is the classic 3-sleeve style)
1 1/2 cups powdered sugar
1 cup melted butter
1 1/2 cups PB
Combine butter & PB to melt in microwave. Crush graham crackers, or be smart & buy a box of crumbs. Graham cracker crumbs + powdered sugar + butter/PB. Spread in 9×13 pan. Melt chocolate chips in microwave (short bursts w/lots of mixing after initial 30 seconds). Spread over top of PB crumb mixture. Refrigerate for at least an hour, then cut into square.