Easy 3 Ingredient Peanut Butter Mug Cake recipe. The perfect treat to satisfy your sweet tooth, this microwave cake is ready in under 5 minutes.
Lately, I have made it a habit to wake up earlier than everyone else in my house and making mug cakes for breakfast.
Honestly, these slow mornings are the best part of the day. I can make coffee, read a book or plan out the day. With a very active toddler and working full time as a teacher, it is very difficult to find the time to think, or just have some me-time.
This 3 Ingredient Peanut Butter Mug Cake might be my favorite dessert (or breakfast) right now. It isn’t made with much sugar, and still packs in the delicious peanut butter flavor that I crave. This healthy peanut butter mug cake is definitely something worth waking up early for.
3 Ingredient Peanut Butter Mug Cake Ingredients
You need 3 simple ingredients to make this easy peanut butter mug cake recipe. All you need is:
- large egg
- creamy peanut butter
- white sugar
That’s it!
Tips
Make sure you are using a microwave-safe mug. You’d think this would go without saying, but the amount of times that I grabbed a coffee mug that wasn’t safe for the microwave. This results in the mug overheating and potentially overcooking the microwave mug cake.
Keep an eye on the cake in the microwave! If this is the first mug cake recipe you have made, you want to see how your microwave reacts to cooking a mug cake. Some microwaves are a lot less powerful than others. If you see the cake rise above the mug, pause the microwave a little bit until the cake falls then resume the microwave. Then next time you can adjust the cooking time, or know how closely to watch your mug cake.
Make sure you allow your cake to cool before eating. I know it’s tempting to eat it right out of the microwave, but if you don’t let the cake cool it may be undercooked when you bite into it. This is because the cake continues cooking after you remove it from the microwave for a couple of minutes.
Variations
Add in some mix-ins. Like the peanut butter chocolate combo? Add in some dark chocolate or semi-sweet chocolate chips into the wet ingredients. If your combo of choice is peanut butter and jelly, try adding some raspberry jam in the centre of the batter.
Switch up the peanut butter. I like using both regular and natural peanut butter in this recipe. But if you wanted to try out some different nut butters, I love almond and cashew butter in this recipe.
Make this into a Keto mug cake. Want a Keto peanut butter mug cake? Replace the white sugar with stevia.
More Mug Cake Recipes
Like this 3 Ingredient Peanut Butter Mug Cake? Then you will love these single serving dessert recipes as well:
And if you try this recipe, let me know! Rate it, leave a comment and tag me with #atasteofmadness on Instagram! I always love seeing what you are creating!
3 Ingredient Peanut Butter Mug Cake
Ingredients
- 1 large egg
- 2 Tbsp smooth peanut butter
- 1 Tbsp granulated sugar
Instructions
- In a microwave save mug, mi all of the ingredients together until smooth.
- Microwave for 1 minute, or until the top of the cake has set.
I love a mug cake recipe, especially when I don’t want a ton of tempting sweets around the house. This peanut butter version is great served warm with a scoop dark chocolate ice cream on top!
Ooh sounds so good with ice cream on top!
All these mug baking recipes are so DANGEROUS to me. I just can’t resist, especially one with peanut butter. Making myself a little treat as we speak.
Same haha! So dangerous 🙂
Mug cakes are some of my favorite quick desserts to make! Loved that the egg and peanut butter also pack this one with protein! So delicious.
Agree! So good!
I love simple mug cake recipes and this is my new favorite . I adore anything peanut butter and this is now my go to quick and easy desert .
Yay! I am so glad you like it!
Mug cakes are a go to dessert for me! I love the peanut butter recipe! So perfect for my sweet tooth!
So glad you liked it! 🙂
This mug cake is so delicious and easy to make! I love that it’s made in a mug and made with my favorite flavor! 🙂 Such a perfect dessert!
So glad you liked it!
I was totally there when you were describing being up early, having that slow morning feeling, reading a book, etc. A great way to start the day. My day goes souch better when it starts this way. Would be even better with that peanut butter mug cake. So easy and delicious. Great with a good cup of coffee! Thanks for sharing your morning with us!
Agree! Thanks 🙂
My partner loves peanut butter and couldn’t even wait to let this cool to eat it he loved it so much.
That makes me so happy to hear!
I tried this and it was really easy to make. The flavour and texture more than made it worth it. This recipe is a keeper!
So glad to hear that 🙂
My new fav mug cake! I had some chocolate chips that I let melt on top, and it was like eating a reese in a cake!!
That is genius! I’m trying that next time!
Well that looks easy!!! I can’t wait to try this.
Let me know how it goes 🙂
The texture is a little strange, almost like a pancake. I mixed in chocolate chips, which definitely helped the taste. This recipe is definitely easy, and it does hit the spot when looking for something sweet. Not sure I will make it again.