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Microwave S’mores Mug Cakes

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Microwave S’mores Mug Cakes bring all the gooey, chocolatey goodness of a campfire treat straight to your kitchen—ready in minutes! Warm, rich, and melty, this is the ultimate quick dessert fix.

Ingredients

Scale
  • 4 tablespoons butter, divided
  • 1 graham cracker, crushed into crumbs
  • 1 large egg, whisked
  • 3 tablespoons milk
  • 4 tablespoons all-purpose flour
  • 3 tablespoons sugar
  • 3 tablespoons cocoa powder
  • 1/2 teaspoon baking powder
  • Pinch of kosher salt
  • 4 large marshmallows (or 32 mini marshmallows)

Instructions

1. Prepare the Graham Base

  1. Melt 1 tablespoon butter in a mug (about 20 seconds).
  2. Stir in crushed graham crackers.
  3. Divide mixture between 2 mugs and press into the bottoms.

2. Make the Batter

  1. Melt remaining 3 tablespoons butter in a bowl.
  2. Whisk in milk and egg until combined.
  3. Add flour, sugar, cocoa powder, baking powder, and salt.
  4. Whisk until smooth.

3. Assemble the Mug Cakes

  1. Add 1/4 of the batter into each mug.
  2. Top with marshmallows.
  3. Add remaining batter evenly.
  4. Finish with more marshmallows on top.

4. Microwave

  • Microwave for 1 minute to 1 minute 15 seconds.
  • Watch closely near the end to prevent overflow.

5. Cool & Serve

  • Let cool slightly (mugs will be hot).
  • Grab a spoon and enjoy immediately!

Notes

  • Watch cooking time: Microwaves vary—start low and add time if needed.
  • For gooey centers: Slightly undercook.
  • For cake texture: Cook a bit longer.
  • Avoid overflow: Use larger mugs and don’t overfill.
  • Safety first: Let mugs cool before handling.

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One Potato is a community and newsletter written by real people who are parents, having real conversations about our families, cooking traditions, and cultures. We are passionate about raising healthy and happy kids while navigating the challenges of picky eaters, dietary restrictions, busy schedules, and daily life.