Peanut Butter Mug Cake2 mins prepServes 1An easy and delicious peanut butter mug cake, perfect for celebrating National Peanut Butter Lover's Day (or any day!). Topped with chocolate chips for a classic flavor combination.US standardMetric-1 servings+SharePrintWhat you need1 oz chocolate chips2 tbsp maple syrup1 flax egg2 ½ tbsp all purpose flour1 tbsp peanut butter1 tsp baking powderCheckout experienceCheckout experienceInstacartCheckout experienceInstacartShop ingredientsInstructionsMix all ingredients in a microwave safe bowl. Microwave for 45 seconds to 1 minute. Top with chocolate chips.View original recipe