I can’t believe Valentine’s Day is in 2 weeks! The past 7 years I’ve decorated the house with balloons, flowers, chocolates and made a special dinner, but something has been missing and I figured it out last week. Microwave S’mores Mug Cakes!
Want to know a super quick way to show someone you love them? Hug them, kiss them and make one of the most decadent desserts I’ve ever tried in minutes and I mean minutes!
These Microwave S’mores Mug Cakes are so easy even Kenya and Chloe made them on their own. You just mix the batter in a bowl and layer the marshmallows and chocolate in a good sized mug. Press one minute on your microwave and you’ll enjoy one of the most delectable desserts you’ve ever tried. It’s sweet, gooey with a deep chocolate brownie inside sandwiched between a graham cracker crust and gooey marshmallows you won’t be able to resist.
Still not sure? Watch this Microwave S’mores Mug Cakes video and you’ll be confident you can treat your loved one to a mind blowing dessert too!
Photos by Gerry Speirs

Microwave S'mores Mug Cakes
Ingredients
- 4 tablespoons butter, divided
- 1 graham cracker, crushed to 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
- kosher salt
- 4 large or 32 mini marshmallows
Instructions
- Melt 1 tablespoon of the butter in one of the mugs for 20 seconds or until melted. Add the graham crackers and stir to combine. Transfer half of the graham cracker crumbs into the second mug and press down into the bottoms of each mug.
- Melt remaining 3 tablespoons butter in a bowl in a microwave for 20-30 seconds or until melted. Add milk and egg and whisk to combine.
- Add the flour, sugar, cocoa powder, baking powder and salt into the bowl and whisk until smooth.
- Divide 1/4 of the batter into each mug, top with 8 mini marshmallows or 1 large marshmallow, top with remaining batter and finally 8 mini marshmallows or 1 large marshmallow.
- Microwave the mugs for 1 minute to 1:15 watching towards the end to make sure they don’t overflow.
We made this recipe and followed it perfectly. The result was that it came out cake-like. It does not look like the picture at all. I wonder what happened?
I haven’t tried that, but I bet it would work!
Hi! Thank you again for such great recipes and healthy inspirations!! Do you think cacao would be a good replacement to the cocoa? Thank you!
Thank you!
SO delicious! Thanks, Catherine!
In Step 1 it is 1 tablespoon of butter to mix with the crushed graham crackers. And then in Step 2 its the remaining 3 tablespoons butter to mix into the cake mix!
So excited to make this. In the video, you said to melt 1 tablespoon of butter for the brownie part but the recipe says to melt 3 tablespoons…please let me know which is correct!
Thanks!
Yeah!
Dessert tonight