Microwave S'mores Mug Cakes

When I'm craving a rich, chocolaty dessert, but don't want to commit to baking an entire cake, pie or something in between, I whip up these Microwave S'mores Mug Cakes. You only need a small amount of each ingredient to create a decadent chocolate, graham cracker, marshmallow treat with a twist that you can make in the microwave and eat right away. The best part? Since each cake is made in one mug there's practically no clean up, to boot.
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  • Level: Easy
  • Total: 10 min
  • Active: 10 min
  • Yield: 2 mug cakes
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4 tablespoons butter

1 graham cracker, crushed to crumbs

3 tablespoons milk

1 large egg, whisked

4 tablespoons all-purpose flour

3 tablespoons sugar

3 tablespoons cocoa powder

1/2 teaspoon baking powder

Kosher salt

32 mini or 4 large marshmallows


  1. Microwave 1 tablespoon of the butter in a microwave-safe mug until melted, about 20 seconds. Add the graham cracker crumbs and stir to combine. Transfer half of the crumbs into another microwave-safe mug and press the crumbs down into the bottom of each mug.
  2. Microwave the remaining 3 tablespoons butter in a microwave-safe bowl until melted, 20 to 30 seconds. Add the milk and egg and whisk to combine. Add the flour, sugar, cocoa powder, baking powder and a pinch of salt and whisk until smooth.
  3. Divide 1/4 of the batter into each mug and top each with 8 mini marshmallows or 1 large marshmallow. Divide the remaining batter into each mug and top each with 8 mini marshmallows or 1 large marshmallow.
  4. Microwave the mugs for 1 minute to 1 minute 15 seconds, watching towards the end to make sure the cakes don't overflow.