Ingredients

• 3 tablespoons smooth peanut butter
• 2 1/2 tablespoons granulated sugar
• 1 tablespoon all-purpose flour
• 1 large pinch baking powder
• 1 large egg
• 2 tablespoons powdered sugar
• 2 teaspoons chocolate syrup
• Potato chips, for topping

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Instructions

1. Make the mug cake: Whisk the peanut butter, granulated sugar, flour, baking powder and egg together in a medium bowl and then transfer to a mug. Microwave on high until puffed and set, 60 to 70 seconds. Let cool for 5 minutes.
2. Meanwhile, make the frosting: Mix the powdered sugar and chocolate syrup together until smooth.
3. Spoon the frosting over the cake. Crush a few potato chips over the top and insert a few whole chips into the frosting. Eat immediately.