Kirbie's Cravings

Peanut Butter Chocolate Chip Mug Cake

close-up overhead photo of Peanut Butter Chocolate Chip Mug Cake
Creamy, fluffy, eggless peanut butter cake mixed with melty chocolate chips. This single serving mug cake is ready in about 5 minutes.

It’s been a while since I made a mug cake. But it’s really perfect right now. Because even though I’m trying to eat healthy, I still need a little treat. And this single serving cake means I won’t be tempted to eat an entire full-sized cake or a dozen cookies.

photo of Peanut Butter Chocolate Chip Mug Cake
The peanut butter mug cake is one of my favorites. I just adjusted my recipe a little to add melty chocolate. I used chocolate chunks rather than standard chocolate chips since the chunks are bigger. I’m so happy Nestle came out with chocolate chunks so I don’t have to buy them at specialty baking stores.
overhead photo of Peanut Butter Chocolate Chip Mug Cake
This cake is best eaten warm, while the chocolate is still melty and gooey. Because this cake is eggless, the crumb is a little loose. It’s best eaten in the mug as it won’t hold up well if you try to remove it from the mug. So I recommend you just grab a spoon and dig in.
close-up photo of a spoonful of Peanut Butter Chocolate Chip Mug Cake

Here is a video of the recipe too! You can also follow my YouTube page for all the latest recipe videos.

If you enjoy this mug cake recipe, I wrote a whole cookbook on mug cakes: 5-Minute Mug Cakes.

Peanut Butter Chocolate Chip Mug Cake

Servings: 1
Prep Time: 4 minutes
Cook Time: 1 minute
Total Time: 5 minutes
Course: Dessert
Cuisine: American
Single serving creamy, fluffy, eggless peanut butter cake mixed with gooey melted chocolate chips. Cooks in the microwave and is ready in minutes.
5 from 14 votes


  • 4 tbsp all-purpose flour
  • 1/4 tsp baking powder
  • 1 tbsp  granulated sugar
  • 1/4 cup  fat-free milk
  • 3 tbsp creamy peanut butter
  • 3 tbsp semi-sweet chocolate chunks or chocolate chips


  • In a microwave safe mug, add all ingredients except chocolate. Using a small whisk, mix vigorously until batter is smooth and no flour chunks remain.
  • Stir 1 tbsp of chocolate chips into the cake batter. Add another 1 tbsp concentrated in the center/middle of the batter (so that when you dig into the center of your cake when it's finished, it has a concentrated amount of chocolate). Sprinkle remaining 1 tbsp on top.
  • Cook in the microwave at full power for about 1 minute. If cake batter is still gooey, cook for an additional 15 seconds. Allow cake to cool a few minutes before eating. Cake is best eaten warm.


  • It is best to eat the cake directly from the mug and avoid removing it from the mug to eat it as the crumb is looser than a traditional cake.
  • If you choose to omit the chocolate chips, you may need to add more sugar to the batter.

The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.

Did you make this recipe?I'd love to see it! Mention @KirbieCravings and tag #kirbiecravings!


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Eggless Peanut Butter Chocolate Chip Mug Cake

Check out my cookbook 5-Minute Mug Cakes, with nearly 100 recipes!

Some of the links contained in this post are affiliate links. Much like referral codes, this means I earn a small commission if you purchase a product I referred (at no extra charge to you).

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75 comments on “Peanut Butter Chocolate Chip Mug Cake”

  1. I’m Valerie- a content creator for Reasons to Skip the Housework. We’d love to feature this post in an upcoming Mug Cake roundup. We would use one photo with a prominent link back to this post (no recipe). Please let me know if you’d rather we NOT feature you!

  2. I was searching pinterest for a quick peanut butter mug cake, and found this one. It was perfect! Exactly what I was looking for!

  3. Sooo good!

  4. Delicious! I usually make the chocolate chip cake but I was out of brown sugar. I think this is my new go too. Top it with some vanilla ice cream to increase the yum!

  5. Made two of these last night for my husband and I. I was in the mood for cake after dinner, so this was perfect! Used chocolate chips and the rest as listed. It was sooo yummy! Will definitely make again when the craving strikes.

  6. Could whole milk be used instead of the fat free milk? I am unable to digest anything that is fat free.

  7. how many calories for the peanut butter chocolate chip mug cake

    • I’m sorry but I do not currently have the nutritional information for this recipe. There are several websites that do allow you to input a new recipe and it will calculate nutrition data.

  8. This is the best mug cake recipe ever! I tried it and it was amazing! Thank you!

  9. This was sooo good! Made it in my new Pampered Chef Ceramic Egg Cooker. Cooked for 1 minute then kept checking at 20 second intervals totaling 2 minutes.

  10. This is my new favorite mug cake! I cut the recipe in half to keep the calorie count down and used cashew milk…SO GOOD. I love that this is an eggless recipe, so it’s okay if it’s a tiny bit undercooked, leaving pockets  gooey deliciousness 🙂

  11. Hubby was in the mood for something sweet so I made this for him and he’s really picky. He loved it!! 

    Let’s say I want to add an egg, would you suggest adjusting any of the other ingredients?

  12. Can this recipe be used with gluten free flour ( King Arthur measure for measure)?

  13. These look so awesome! Perfect dessert for tonight’s supper. My microwave is broken tho.. Possible to bake these?

  14. You’re blog is the best place to find mug cake recipes. They always turn out so well xx If I wanted to add cocoa powder to this recipient should I adjust the liquid or the powder ingredient. I’m not much of a home made baker, recipes are my best friend haha!

  15. I’m doing keto and this popped up in my search for a mug cake. I subbed almond milk, almond flour, used stevia and sugar free chocolate chips. Came out fabulous!! Thank you.

  16. This is my favorite mug cake! I change it up by adding jumbo chips to the batter and using brown sugar instead if regular sugar. Frekaing fabulous!!

  17. This recipe was soooooo good. I was out of chocolate chis but still craving chocolate so I put a tablespoon of Nutella in the middle. The Nutella melted and made a molten chocolate center. This is my go-to recipe for breakfast. (Dont laugh i usually have sweets for breakfast)

  18. This is honestly my go-to for a late-night sweet fix! It’s so easy and you only have to do some simple swaps and it’s vegan too, which is awesome. Totally love this! 

  19. I’m a bit lactose intolerant so made this with kahlua in lieu of milk-made for an awesome substitution!

  20. This was perfect…. Just what I was looking for to kill the craving! ? And it only took a mug, a spoon, a measuring cup, and 4 mins instead of 30 mins and a sink full of bowls and baking utensils! Thanks so much for this!

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