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
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 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. 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!
Can’t get enough of this peanut butter cookie mug cake recipe? Try these other recipes!
- Carrot Cake Mug Cake – Carrot cake made in a mug and topped with whipped cream and walnuts.
- Vanilla Mug Cake – The perfect single serving vanilla cake.
- Chocolate Peanut Butter Mug Cake – Chocolate and peanut butter cake made in a mug.
- Coffee Cake Mug Cake – Cinnamon coffee cake topped with cinnamon streusel and made in a mug.
- Coconut Mug Cake – Mug cake made with coconut extract and shredded coconut.
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!
Ingredients
- 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
Instructions
- In a small bowl, combine flour, brown sugar, baking powder, and cinnamon.
- Combine in vanilla, milk, peanut butter, and melted butter. Stir until combined with no lumps.
- Pour batter into mug and microwave for 1-1:30 minutes.
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Nutrition Information:
Yield:
1Serving Size:
1Amount Per Serving: Calories: 579Total Fat: 37gSaturated Fat: 13gTrans Fat: 0gUnsaturated Fat: 19gCholesterol: 35mgSodium: 478mgCarbohydrates: 50gFiber: 4gSugar: 14gProtein: 16g
This nutritional information can vary depending on the specific products you choose so this is a general guess of the correct nutritional information based on the products I used. Please keep that in mind when making the recipe.
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Laura @ Family Spice
Ooh what a great idea for a mug cake!
Lane & Holly @ With Two Spoons
Yum! This looks amazing!
Megan @ MegUnprocessed
Love mug cakes! Quick recipe for that “i want cake” moments!
Baker by Nature
This looks irresistible!
Bethany
I made this last night and it was perfect!! I’m back again now for round two ??
madi
Great! I’m so glad you enjoyed it! Mug cakes are literally my favorite!
Lyndsay @ Lyndsay's Travel Kitchen
I love making mug cakes! They make great midnight snacks 😛
34mactuttu.com
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.
Niki
Just can out of the microwave, I added some chocolate chips to the mix too ????? it’s literally heaven ??
Very filling too
madi
Adding chocolate chips is such an awesome idea! So glad you enjoyed!
Sam
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!!
madi
So glad you enjoyed!
April
any excuse for a cookie is a good excuse for me! YUM
Rebecca Hubbell
I love peanut butter cookies and cake, so this is going to be the perfect dessert for tonight!
Monica Le
oh this cookie looks so delicious..
Ashima
oooh! I have everything required to make this super quick recipe and I am making it for dinner tonight!
glad I came across this one 🙂 and thanks for sharing!
Michelle
Mmmmn this looks super delicious. I love peanut butter cookies. I bet this is so great just out of the microwave.
dixya @food, pleasure, and health
i keep seeing mug cakes but i have yet to try it. PB is one of my fav flavors so this might just be the one to start with.
Savita
Peanut butter cake, can’t get better than this. Yumm! Plus a real treat for one is even better! Genius!
Anne Lawton
I’ve never tried mug cakes, but they are a great idea for a quick and easy dessert. I love that you can make them so quickly!
Carly Patrick
This was AMAZING. I ommited butter as I’m vegan and still came out perfectly ???? I recommend drizzling a bit of maple syrup on top too. SO YUMMY
Ashley @ Big Flavors from a Tiny Kitchen
Personal-sized desserts are so much fun! I love peanut butter cookies, but a mug cake is a fabulous idea! Perfect for when a sweet tooth craving strikes!
Leslie Haasch
I’m always so wary of mug cake recipes, but this looks too good to pass up!
Karyl
I love peanut butter cookies…I would need to make this into a bowl cake so I could eat even more 🙂 I do love personal-sized desserts, so you can exercise some kind of self-control though. Pinning this one for sure
Anne
Oh – Just Enough peanut butter cookie/cake! Sounds perfect. I never wanted too much around, so this is great.
Tatiana
How cool is that! Honestly I am not a big peanut butter lover (probably because i grow up in different country), but my kids and husband will love it
Jenni LeBaron
Yum, I love a cook mug cake. Especially when it’s chock full of peanut butter!
Lois
This cake is the perfect hygge companion especially since spring weather has forgotten to show up yet.
madi
It really is!