S'mores Crazy Cake in a Mug


  • 5 Tablespoons flour (all-purpose)
  • 4 1/2 Tablespoon sugar
  • 2 teaspoons cocoa (unsweetened)
  • 1/4 teaspoon baking soda
  • Dash of salt
  • 1/2 teaspoon white vinegar
  • 1/4 teaspoon pure vanilla extract
  • 2 teaspoons vegetable oil (or canola)
  • 4 1/2 Tablespoons water 

1 large marshmallow

3 Hershey chocolate squares

1 graham cracker square broken into small pieces


Using a large microwave safe mug, spray the inside with non-stick cooking spray. Next, mix the first 5 dry ingredients in the mug. After mixing well, make 3 depressions in dry ingredients.  Pour vinegar in one depression, vanilla in the other and the vegetable oil in third depression.  Pour water over top.  Mix well until smooth using a fork.  Next, Place marshmallow in the middle of the cake mix and press down. Place in microwave and cook on high for *2 minutes, uncovered. Check with toothpick to make sure it comes out clean (not near the marshmallow).   Be sure not to overcook!  When done, remove from microwave, top with the Hershey chocolate squares and sprinkle with graham cracker pieces.  Allow to cool for a few minutes...enjoy!

*Each microwave cooks differently, adjust time accordingly!  One person made the cake in 1 minute 40 seconds, and another in 1 minute 20 seconds. If you overcook the cake, it may ruin it.  Be sure to watch as it bakes. 

If you want a neater mug cake, mix the cake batter in a small bowl, then pour the batter in the mug.