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Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake – All of your favorite peanut butter cookie flavors in a simple mug cake! Perfect for when you just want a single serving 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!

Common Questions About Making a Peanut Butter Cookie Mug Cake

What is a mug cake?

A mug cake is a simple cake batter made without eggs that is cooked by microwaving it. It is a simple individual dessert that is ready in less than 5 minutes.

What kind of peanut butter should I use?

I suggest using a basic creamy peanut butter like JIF.

What can I top my mug cake with?

Some of my favorite toppings include –

What kind of mug should I use?

Make sure that you use a microwave-safe mug! This is SO important! Alternatively, you can use a ramekin instead.

Can this recipe be made vegan?

Absolutely, just use your favorite non-dairy milk (such as almond, soy, oat, etc) and use coconut oil instead of butter.

Can’t get enough of this peanut butter cookie mug cake recipe? Try these other recipes!

Yield: 1 Serving

Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake

Peanut Butter Cookie Mug Cake - All of your favorite peanut butter cookie flavors in a simple mug cake! Perfect for when you just want a single serving dessert!

Prep Time 2 minutes
Cook Time 2 minutes
Total Time 4 minutes


  • 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. Add in vanilla, milk, peanut butter, and melted butter. Stir until fully combined.
  3. Pour batter into a microwave-safe mug and microwave for 1-1:30 minutes.
  4. Serve immediately.

Nutrition Information:



Serving Size:


Amount 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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Thursday 27th of July 2023

Amazing! I just made this and it is just like eating a peanut butter cookie.


Wednesday 2nd of February 2022

This was excellent!! Definitely satisfies that peanut butter urge! :)


Wednesday 2nd of February 2022

This had a little bit too much cinnamon for me. It over powered the taste of the peanut butter. As well, the consistency seemed a bit off. I think more sugar needs to be added.


Sunday 12th of December 2021

It was overall ok I guess. Would not recommend to people who don't like it when things melt in your mouth and whether there ok with it sticking to the ruff of your mouth if you eat it with milk it is better.


Wednesday 21st of July 2021

Mug of love and happiness! Thank you for sharing. I truly appreciate you 👍❤️

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