Flourless Peanut Butter Mug Cake
The other day my brother told me he is sick of my mug cake posts. I’m not tired of them yet though. Hopefully you aren’t either. I love that they are fast, especially since I haven’t had time to do a lot of baking. And the one serving size is perfect because nothing gets wasted.
I’ve made a flourless nutella mug cake and a flourless chocolate cake. So the other day I decided to try making a flourless peanut butter mug cake.
Surprisingly, the flourless peanut butter mug cake rose quite high when cooking in the microwave. The other flourless cakes were much more dense. It almost looks like a regular peanut butter mug cake, except there’s no flour.
The cake is very moist and is perfect for peanut butter lovers. And as a bonus, I have another gluten free recipe to add to my collection.
If you enjoy mug cakes, you can view my whole mug cake series here.
Flourless Peanut Butter Mug Cake
Yield: 1-2
Prep Time: 5 mins
Cook Time: 1.5 mins
Total Time: 6.5 mins
Ingredients:
2 tbsp of peanut butter
1 tbsp sugar
¼ tsp baking powder
1 tbsp heavy cream
1 large eggDirections:
1. Mix all ingredients into a mug. Stir with a small whisk or fork.
2. Microwave for about 1 min. Check on the cake. If not done, cook for an additional 15-30 seconds.
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Rose — March 7, 2012 @ 8:03 am
Ahhh you’re killing me with these mug-recipes! I want to make them so bad… But I don’t have a microwave
Any way I could make these in the oven? 
Kirbie replied: — March 7th, 2012 @ 10:19 am
I’m sure it’s possible to make in the oven but I would worry about the mug breaking. Also it would end up taking a lot longer..
Kay — March 7, 2012 @ 8:09 am
You should write a cookbook about mug cakes!!
Kirbie replied: — March 7th, 2012 @ 10:18 am
Hm, I never thought of that. Maybe I will =)
Iris — March 7, 2012 @ 3:20 pm
I’m definitely not tired of them! I plan to use your mug cake recipes if I become an RA next year.
Kirbie replied: — March 8th, 2012 @ 9:35 am
Ooh, yeah they’d be perfect while living in the dorms.
ChrisB — May 16, 2012 @ 7:40 am
Wondering if this would be okay using sunflower butter and no butter??? Allergies to peanuts and dairy…
ChrisB — May 16, 2012 @ 7:45 am
OOPs… I meant *no cream* instead of no butter. LOL
Kirbie replied: — May 16th, 2012 @ 8:24 am
I’m not sure of the answer because I haven’t tried not using cream. Sorry!
Janet — May 19, 2012 @ 4:30 am
Better late than never to have happened on your web site for the mug cakes. The possibilities are endless, a recipe book might be indicated, but the mug cakes are PERFECT for a sweet tooth without going overboard, suits ALL ages.
Kirbie replied: — May 21st, 2012 @ 8:43 am
I’m glad you’re enjoying the mug cake recipes!
June — May 19, 2012 @ 7:25 pm
ChrisB: I will be trying this recipe soon with Almond Milk ( I have an allergy to dairy as well). I will let you guys know how it goes!
Taya — December 5, 2012 @ 10:25 pm
Oooh I wanna make like all of these mug cake recipes, but we’re always missing ingredients. I know what I’m buying with my birthday moneyy.
mary h — December 16, 2012 @ 9:00 am
uggggggg! my friend moze n i tryd this recipe and it ended up tasting like scrambeled eggs-_-
Kirbie replied: — December 16th, 2012 @ 9:18 am
It sounds like you didn’t mix all the ingredients together thoroughly before cooking it. If the egg is completely mixed in with everything else, it wont cook like scrambled eggs
Jeese — April 3, 2013 @ 6:08 pm
I made this tonight with 2% milk because I had no heavy cream on hand. I also used crunchy peanut butter. While it doesn’t look that appealing, the taste is ok. I added a little bit of cocoa and hoped it would be like peanut butter chocolate but its just peanut butter.
Kirbie replied: — April 4th, 2013 @ 12:36 am
Hmm, def try again if you have heavy cream. It definitely makes a difference compared to 2% milk.
Ellie — April 20, 2013 @ 1:47 pm
I fudged around with this (because I never ever ever use heavy cream, so didn’t have any of it on hand T_T) and used melted butter and a splash of milk instead. Came out quite nicely; not sure if it’s how it’s supposed to be like, but I thought it was still delicious hehe.
Kirbie replied: — April 21st, 2013 @ 12:26 am
Glad it was delicious for you. I think your result was probably similar to the original.