This Hello Dolly recipe is a classic cookie bar recipe everyone knows and loves. Maybe you know them as 7-layer bars or magic bars. Either way, decadent layers of buttery graham crackers, chocolate chips, peanut butter chips, coconut, and nuts, enrobed in sweetened condensed milk come together in this simple bar recipe that yields spectacular results every time.
Place the melted butter in a 9x13 pan. Sprinkle the graham cracker crumbs over the butter. Pour condensed milk evenly over the crumbs. Top with chocolate chips, peanut butter chips, coconut, and walnuts, and press firmly.
Bake for 25-30 minutes. Cool completely before cutting them into squares.