This S’mores Mug Cake Is An Easy Microwave Marvel

Making a s'mores mug cake.

I often get antsy this time of year, eager for the perfect summer nights I’ll eventually spend around the fire pit with my family. And while those summer nights remain months away, I’ve found a delicious way to enjoy the flavors of s’mores in the meantime: making S’mores Mug Cake!

This single-serving dessert in a mug only takes a few minutes to make, and it’s every bit as good as my single-serve Rice Krispie Treat and extra-large chocolate chip cookie in a mug. You might already have everything you need to make one in your pantry!

The next time you have a hankering for something sweet, give this nostalgic treat a try.

How To Make S’mores Mug Cake (Recipe)

A kitchen counter with various ingredients for s'mores mug cake on it.

Ingredients:

  • 3 Tbsp flour
  • 1 Tbsp cocoa powder
  • 2 Tbsp dark brown sugar
  • 1/4 tsp baking powder
  • Pinch of salt
  • 3 Tbsp milk
  • 1 Tbsp butter, melted
  • 1/4 tsp vanilla extract
  • 1 Tbsp chocolate chips
  • 8-12 mini marshmallows
  • 1 graham cracker, crushed
A woman mixing s'mores mug cake ingredients in a bowl.

Directions:

Grease a large mug (at least 12 ounces) with some butter or nonstick cooking spray.

Add the flour, cocoa powder, sugar, baking powder, and salt to a small bowl and whisk to combine.

Add the milk, melted butter, and vanilla extract to the dry ingredients and stir.

Crushing a graham cracker for s'mores mug cake.

Crush the graham cracker into small (but not too small) pieces on a plate or in a zip-top bag.

A person putting marshmallows into a bowl for a s'mores mug cake.

Add crushed graham cracker pieces, chocolate chips, and mini marshmallows to the batter and stir. (You want the add-ins to be well incorporated, but avoid overmixing the batter to keep the cake light.)

A person pouring s'mores mug cake ingredients into a cup.

Pour the batter into the greased mug, then microwave it for 60-90 seconds. (In my 1000-watt microwave, it took about 70 seconds.)

Two pictures of a person holding a spoon in a finished s'mores mug cake.

Top your finished mug cake with a few more chocolate chips, mini marshmallows, or even a scoop of ice cream, and dig in!

Do you have a favorite mug cake recipe? Share it by leaving a comment below!

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Jill Nystul (aka Jillee)

Jill Nystul is an accomplished writer and author who founded the blog One Good Thing by Jillee in 2011. With over 30 years of experience in homemaking, she has become a trusted resource for contemporary homemakers by offering practical solutions to everyday household challenges.I share creative homemaking and lifestyle solutions that make your life easier and more enjoyable!

About Jillee

Jill Nystul

Jill’s 30 years of homemaking experience, make her the trusted source for practical household solutions.

About Jillee

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    • You could try leaving out the brown sugar. I have never tried it, but the chocolate, marshmallows and graham crackers may add enough sweetness for you. Let me know how it turns out. :-)

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