Directions

• Step 1:
  Preheat oven to 350 degrees F (175 degrees C).
• Step 2:
  Line 24 muffin cups with paper liners.
• Step 3:
  Beat cake mix, water, canola oil, and egg whites in a large bowl with an electric mixer at low speed until moistened. Increase speed to medium and continue beating for 2 more minutes.
• Step 4:
  Fold marshmallows, butterscotch chips, chocolate covered toffee, chocolate chips, and flaked coconut into the cake batter.
• Step 5:
  Fill prepared muffin cups 2/3 to 3/4 full with batter.
• Step 6:
  Bake in the preheated oven until cupcakes are golden brown and set, about 15 to 25 minutes.
• Step 7:
  Cool in the pans for 10 minutes before removing to cool completely on a wire rack.
• Step 8:
  Fill a pastry bag fitted with a star tip with peanut butter.
• Step 9:
  Gently insert star tip into the center of each cupcake; squeeze a small amount of peanut butter into the cupcake.