1/2 cup (1 stick) unsalted butter, plus more for baking pan
43 chocolate wafers, such as Famous
1 cup confectioners’ sugar
1/2 teaspoon fine salt
1 1/4 cups natural peanut butter
1 cup halved chocolate peanut-nougat candy bars, such as Snickers “minis” (about 12)
1 cup chocolate wafer candy bars, such as Kit Kat “snack size” (about 8), cut into 3/4-inch pieces
1 bag (11.5 ounces) chocolate crisped-rice candy bars, such as Nestle Crunch “fun size”
Directions
Lightly butter a 9-inch square metal baking pan and line with parchment paper, leaving a 2-inch overhang on all sides. Butter parchment. In a food processor, pulse wafers until finely ground (you should have about 2 1/2 cups). Transfer to a large bowl; whisk in confectioners’ sugar and salt. In a medium microwave-safe bowl, microwave butter and peanut butter in 30-second increments, stirring, until melted and smooth, about 1 1/2 minutes. Stir into wafer crumb mixture and let cool to room temperature, about 10 minutes.
Fold in nougat and wafer candy bars, then transfer to pan. With a small spatula, press mixture evenly into pan. Refrigerate until set, about 30 minutes. In clean microwave-safe bowl, microwave crisped-rice candy bars in 30-second increments until just melted. Pour over chilled mixture and, with spatula, spread evenly. Refrigerate until set, 20 minutes. Using parchment, lift confection from pan and cut into 27 bars.
