This Nutter Butter Bars recipe is for peanut butter lovers only, with a buttery Nutter Butter crust, gooey peanut butter condensed milk filling, layers of peanut butter chips, roasted peanuts, chopped Nutter Butters, and Reese's Pieces, and a peanut butter drizzle.
Preheat oven to 350. Line a 9 x 13 pan with parchment paper.
Make the Nutter Butter crust. Crush 32 Nutter Butter cookies into 4 cups of fine crumbs with a food processor, blender, or ziptop bag and rolling pin. Stir the cookie crumbs, brown sugar, and salt together in a large bowl. Add the melted butter and stir well. Use a glass or flat-bottomed measuring cup to press the crumbs into the prepared pan.
Make the filling. Melt the peanut butter in a medium microwave-safe bowl for about 30 seconds. Stir in the sweetened condensed milk until combined.
Assemble the Nutter Butter bars. Sprinkle the peanut butter chips and peanuts on top of the crust. Pour the peanut butter condensed milk mixture on top. Add the chopped Nutter Butters and Reese's Pieces. Use a spatula or fork to gently press the toppings into the condensed milk mixture so everything adheres. If desired, sprinkle with flaky sea salt.
Bake for 30 to 35 minutes or until the edges are golden brown. Place on a wire rack to cool. Chill in the refrigerator.
To serve, melt 2 tablespoons of peanut butter in the microwave and drizzle on top of the bars.
Notes
Store Nutter Butter bars wrapped in plastic wrap or in an airtight container at room temperature for a couple of days or in the refrigerator for up to one week. To freeze, place bars in a freezer-safe container between layers of parchment paper or wax paper for up to 3 months.