Chocolate peanut butter mug cake

Keto Chocolate Peanut Butter Mug Cake – Make it in 5 minutes

This recipe for a Keto Chocolate Mug Cake was originally done in 2017 back when was just starting out. 

Chocolate and peanut butter. A classic combination!



We barely knew what we were doing, but we did know that we wanted to help people experience the success and passion we felt for the Keto diet and Keto Lifestyle.


A rich chocolate flavored mug cake studded with peanuts that is low carb and keto-friendly. This cake is rich and fudgy, with a warm peanut butter glaze and cooks in the microwave in less than a minutes.


One of the most common recipe requests I receive is for small batch desserts. Over the years, I’ve shared a few of my favorites.


Chocolate peanut butter mug cake
Chopped peanuts are a great addition!


In fact this recipe comes from our archives. We made this over 5 years ago, and I felt like it needed new life. A spring renewal if you will.


Another great thing about this recipe is that it doesn’t require any special techniques and uses simple ingredients, most of which you probably already have on hand.


This simple cake is perfect on its own, but I love to add a scoop of creamy warm peanut butter on top.


The simplest chocolate dessert yet incredibly moist, easy, and the best single-serving dessert out there (to share or not to share)


Chocolate peanut butter mug cake
Mug cakes are the perfect portion controlled dessert.


What is a mug cake?

I still seem to get this question a lot and a mug cake is literally as it sounds. A cake that is made in a mug!


It’s great because you don’t need to whip out a bunch of tools to make this simple mug cake.

Great for portion control, or those living alone.



Well this updated version is truly delicious! I love mug cakes because they are so easy and have built in portion control.  Sarah made several prototypes of this recipe during the week this was the best version.  We hope you enjoy it!

Print Pin
5 from 2 votes

Keto Chocolate Mug Cake

Course Dessert, keto desserts, low carb dessert
Cuisine American
Keyword almond flour recipe, easy keto desserts, easy low carb desserts
Prep Time 3 minutes
Cook Time 5 minutes
Servings 2 people
Calories 185kcal


  • 12 oz Coffee Mug or ramekin



How To Make

  • *Use your Mug to mix your ingredients.
  • Melt the butter in microwave for 30 seconds
  • Add your Erythritol to the melt butter and stir well
  • Add your almond flour and coco powder
  • Add your baking powder and vanilla extract (stir well). *Your mixture will resemble chocolate cookie crumbs. Add chopped nuts(optional).
  • Add your egg into the dry ingredients, stir well until it looks like cake batter
  • Add heavy cream for brownie texture, half and half for cake texture.
  • Microwave for 1 minute. Increase time by 5 second intervals until just set.
  • Optional: For a added twist we made a peanut butter drizzle.
  • Place 1 tbsp of peanut butter in a microwave safe dish and heat for 1 minute, and then pour over your mug cake.
  • Optional:  For a added twist we made a peanut butter drizzle.
    Place 1 Tbsp of peanut in a microwave safe dish and heat for 1 minute, and then pour over your mug cake. Garnish with more chopped nuts if desired.
    Let cool, cut in half and serve as desired, with whip cream or a low carb fruit.



Total carbs: 5g
Fiber: 3g
Net carbs: 2g
serves 2


Serving: 4oz | Calories: 185kcal | Carbohydrates: 5g | Protein: 5g | Fat: 18g | Saturated Fat: 9g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 112mg | Sodium: 123mg | Potassium: 161mg | Fiber: 3g | Sugar: 1g | Vitamin A: 469IU | Calcium: 58mg | Iron: 1mg




In this section we try and highlight other recipes that might interest you.  This week we decided to highlight another extremely popular and easy to make recipe:







Keto German Chocolate Mug Cake









We plan on releasing keto content that will be exclusive for blog subscribers.  Also feel free to share this recipe with family and friends! If you haven’t already consider subscribing over on YouTube, we’d love to have you as part of our to  Keto Family.






Keto Quick Start Guide

Here is a companion blog post to get the best results from our Keto Quick Start Guide








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