Anyone who's outgrown classic s'mores will love this version: gooey-sweet melted marshmallow tempered by bittersweet chocolate cookies and salty roasted peanuts. Spread 1 tablespoon peanut butter (at room temperature, for easy spreading) onto a thin, crisp chocolate water (such as Nabisco Famous Chocolate Waters). Slide 1 skewer-toasted marshmallow onto peanut butter. Top with a second wafer and squish down gently. Eat, licking fingers.
Any berry or berry combination works in this cake, which has a dry, crumbly topping that combines with the berry juices for a rich, sweet treat. Pack the frozen berries in a cooler and make this on the first night of camping, before they thaw completely.