Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake – This mug cake takes just a few minutes and tastes just like a peanut butter cookie! Perfect for when you just want a single serving of a dessert!

I’m in love with mug cakes! They are seriously the greatest thing ever because I love desserts but usually don’t want a whole batch of cookies or an entire cake, I’d never get through it all.  A mug cake is just one serving of perfection! After making the Snickerdoodle Mug Cake a few weeks back, I knew I had to try one experimenting with other flavors.  I started with a peanut butter mug cake because peanut butter is so good! It worked out really quite well! Along with this one, there are at least two more mug cakes coming the next few weeks.  I might be a tad bit addicted to making them for lunch!

I’ve been addicted to peanut butter for years, I put it on literally everything from waffles to oatmeal to apparently wonderful  mug cakes now and sometimes I even grab a spoonful of peanut butter sometimes as a snack! Peanut butter and jam sandwiches are my lunches for school everyday too! I’m not sure what it is about peanut butter, but it is delicious!

Check out this video to see how to make the mug cake!


Peanut Butter Cookie Mug Cake


  • 1/4 cup all-purpose flour
  • 1 tbsp brown sugar
  • 1/4 tsp baking powder
  • 1/4 tsp cinnamon
  • 1/2 tsp vanilla extract
  • 1/4 cup milk
  • 1 tbsp butter (melted)
  • 3 tbsp peanut butter


  1. In a small bowl, combine flour, brown sugar, baking powder, and cinnamon.
  2. Combine in vanilla, milk, peanut butter, and melted butter.  Stir until combined with no lumps.
  3. Pour batter into mug and microwave for 1-1:30 minutes.
  4. Let cool before eating.


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