Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake – This cookie in a mug 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!

Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake

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.Β  A cookie in a mug 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.Β  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.Β  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 wonderfulΒ  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!

Looking for more mug cake recipes? Check out my Chocolate Peanut Butter Mug Cake, Carrot Cake Mug Cake, and Vanilla Mug Cake!

Peanut Butter Mug Cake

Check out this video to see how to make this peanut butter mug cake!

5 from 2 votes

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!

Course Dessert
Cuisine American
Prep Time 2 minutes
Cook Time 2 minutes
Total Time 4 minutes
Servings 1


  • 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.

Peanut Butter Cookie in a Mug

Love peanut butter recipes?

Make sure to check out these recipes:

Peanut Butter Puppy Chow from An Affair from the Heart

Frosted Peanut Butter Chip Brownies from Who Needs a Cape?

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  • Reply
    Laura @ Family Spice
    April 25, 2017 at 5:09 pm

    Ooh what a great idea for a mug cake!

  • Reply
    Lane & Holly @ With Two Spoons
    April 26, 2017 at 4:04 pm

    Yum! This looks amazing!

  • Reply
    Megan @ MegUnprocessed
    April 27, 2017 at 2:23 am

    Love mug cakes! Quick recipe for that “i want cake” moments!

  • Reply
    Baker by Nature
    April 27, 2017 at 2:53 pm

    This looks irresistible!

  • Reply
    May 16, 2017 at 9:40 pm

    I made this last night and it was perfect!! I’m back again now for round two πŸ˜¬πŸ˜†

    • Reply
      May 16, 2017 at 11:33 pm

      Great! I’m so glad you enjoyed it! Mug cakes are literally my favorite!

  • Reply
    Lyndsay @ Lyndsay's Travel Kitchen
    June 9, 2017 at 10:08 am

    I love making mug cakes! They make great midnight snacks πŸ˜›

  • Reply
    September 24, 2017 at 7:24 pm

    Now I’m all about chocolate normally, but I was really craving some peanut butter cookies last week, so the idea for this mug cake was born.

  • Reply
    November 7, 2017 at 1:24 am

    Just can out of the microwave, I added some chocolate chips to the mix too πŸ€—πŸ‘ŒπŸΌπŸ’•πŸ’• it’s literally heaven πŸ™ŒπŸΌ
    Very filling too

    • Reply
      November 8, 2017 at 1:22 pm

      Adding chocolate chips is such an awesome idea! So glad you enjoyed!

  • Reply
    November 24, 2017 at 10:49 pm

    I usually make a chocolate chip cookie in a cup but I’m out of chocolate chips so I decided to go with the next best thing!
    AND IT’S SO GOOD it’s so soft and gooey and peanut buttery. Thank you so much for this recipe!!

    • Reply
      December 5, 2017 at 5:35 pm

      So glad you enjoyed!

  • Reply
    January 24, 2018 at 6:22 pm

    any excuse for a cookie is a good excuse for me! YUM

  • Reply
    Rebecca Hubbell
    January 24, 2018 at 8:22 pm

    I love peanut butter cookies and cake, so this is going to be the perfect dessert for tonight!

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