Mix brownie mix according to package. Line 12 muffin tins with cupcake liners, fill liners 2/3 to the top with brownie mix. Add 1 T peanut butter to batter befor baking. Bake brownie cupcakes for 15-18 minutes at 350 degrees. Let cool completely before frosting
For Buttercream Frosting
Beat 2 softened sticks of butter with 2 boxes of confectioner’s sugar, and add 1 t. vanilla. Use a large frosting tip to pipe frosting on to cooled cupcakes. Sprinkle crushed nutterbutter cookies on top of frosting & drizzle with chocolate syrup! Delish!
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