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Chocolate Fudge S'mores Mug Cake

makes 1 serving, can easily be doubled


  • 3 tablespoons graham cracker crumbs
  • 3 1/2 tablespoons unsalted butter melted
  • 2 tablespoons granulated sugar
  • 1 large egg
  • 1/2 teaspoon vanilla extract
  • 1/4 cup flour
  • 2 tablespoons unsweetened cocoa powder I used Dark Chocolate
  • 1/8 teaspoon baking powder
  • pinch of salt
  • 3 tablespoons semi sweet chocolate chips I used mini
  • marshmallow fluff or mini marshmallows


  • Combine 3 tablespoons butter and 2 tablespoons chocolate chips in a small bowl, then melt in the microwave for 20-30 seconds. Set aside.
  • In another bowl, combine remaining 1/2 tablespoon melted butter with 2 tablespoons of graham cracker crumbs and stir until moistened.
  • Press graham crumbs into the bottom of your mug.
  • In a bowl. whisk egg, sugar and vanilla until smooth.
  • Add in flour, baking powder, salt and cocoa, stir until a thick batter forms.
  • Stream in melted butter and chocolate, mixing to combine.
  • Fold in remaining 1 tablespoon chocolate chips.
  • Add half of the mixture on top of the graham crust in the mug.
  • Then add a few mini marshmallows (I did about 10) or you can add a scoop of marshmallow fluff instead.
  • Add remaining batter on top, then pop in the microwave for 1 minute and 20 seconds (I have a 1000 watt microwave).
  • Remove and top with a hearty scoop of marshmallow fluff.
  • Put back in the microwave for 5 seconds to melt it and make it ooey gooey.
  • Carefully remove from microwave (I set mine on a plate since the marshmallows can be messy) and sprinkle with graham cracker crumbs!
  • Serve warm with a spoon and dig in!


Adapted from: http://www.howsweeteats.com