My original peanut butter mug cake is still one of my most popular mug cake posts to date. However, I actually created an eggless version last year that I enjoy even more, so I decided it was high time for me to share it on the blog!
The peanut butter flavor is more pure and rich, the recipe is also healthier as I eliminated the vegetable oil and the egg. The texture is a little more crumbly, so this doesn’t make a great standing cake, but if you are supporting it with the mug, it shouldn’t be an issue.
Like most of my other mug cakes, this one is so easy to put together, and ready under five minutes. It doesn’t rise up as high as the original recipe, but that’s because it has much fewer ingredients. It’s still ridiculously yummy though, especially when still warm!
P.S. This recipe is also in my new upcoming mug cake book*!
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Recipe now updated with video! You can also find all my recipe videos on my youtube channel.
*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).
Peanut Butter Mug Cake (Eggless)
- 4 tbsp all-purpose flour
- 1/4 tsp baking powder
- 4 tsp granulated sugar
- 4 tbsp fat-free milk
- 3 tbsp peanut butter
- Combine all ingredients in an oversized microwave-safe mug. Mix with a small whisk until batter is smooth. Batter will be quite thick. You may want to smooth out surface with a spatula or the back of the spoon before cooking. It won't affect taste but it will come out looking prettier.
- Cook in microwave for approximately 1 minute. If cake is not done, heat an additional 15 seconds. Let cake cool a few minutes before eating. Cake is best consumed while still warm or within a few hours of it being cooked.
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.