Peanut Butter & Oatmeal Mug Cake
This Peanut Butter & Oatmeal Mug Cake is a simple and fast, sweet and salty fix for dessert or breakfast, it’s ready in just 5 minutes!
Peanut Butter Oatmeal Mug Cake
This Peanut Butter Oatmeal Mug Cake is the perfect way to enjoy dessert for breakfast! Okay, okay, I shouldn’t be encouraging cake for breakfast, but it’s got oatmeal in it and it’s served in a mug. Plus it tastes like peanut butter toast, so hey! Why not!
You see, I make a pretty good argument (it must be the law firm rubbing off on me) and you’re already telling yourself it’s okay to enjoy this little cake with your sweetie and a cup of coffee over the morning paper. And it definitely is, this is your life… it’s time to start living it right! And by right, I totally mean cake for breakfast!
A lot of people might say mug cakes are out, but guess what, they’re great for people like me with no self-control when it comes to sweet stuff. Mug cakes are the perfect fix when you just need a little something!
This is a double batch mug cake, making it perfect to enjoy with that special someone, Valentine’s Day is approaching after all! A light and fluffy old fashioned oatmeal cake with a rich peanut butter center, it tastes just like peanut butter toast! But feel free to cut the recipe in half to enjoy a smaller portion!
See how easy this mug cake is to make in this video!
Peanut Butter & Oatmeal Mug Cake for Two
Ingredients
- 6 tablespoons whole milk
- 2 tablespoons vegetable oil
- 2 tablespoons granulated sugar
- 6 tablespoons all-purpose flour
- 3 tablespoons 1-minute oatmeal
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- 3 tablespoons peanut butter
Instructions
- Whisk milk, vegetable oil, and sugar together in a 12 oz. or large mug.
- Whisk in the flour until smooth.
- Whisk in the oatmeal, baking powder, and salt until full incorporated.
- Spoon 2 tablespoons of peanut butter on top and push slightly into the batter.
- Microwave on HIGH for 30 seconds, and then in 15-second bursts until the top looks dry and cooked and springs back when pressed with a finger. Mine took about 90 seconds to cook.
- Top with the remaining tablespoon of peanut butter and let stand at least 5 minutes before eating.
Video
Notes
Throw a small handful of mini chocolate chips into the batter for extra fun!
Nutrition
Did You Make This Recipe?
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This post was originally published in January 2015 and was updated January 23, 2017.
I made half of the recipe, i added sweetner instead of sugar ,put some sprikles on top after it was done , i liked this mugg cake
tastes AMAZING!! I love this mug cake so much! It’s not to dry and not to moist. I cooked mine for 45 seconds and it was perfect! I used lactose free milk and worked just as good as the milk used in this recipe. I also sprinkled some brown sugar on top to give it a little more flavor. Over all, this is the perfect recipe for a morning breakfast, and had so much flavor with the peanut butter!
Wow it was soooo good
Turned out way better than I expected even though I lost my measuring spoons and had to guess the amounts.
It’s not too sweet, which is great
This is such a great idea and looks so delicious. Thanks so much for sharing.
Regards
MJ
This was perfect! Looking for a Sunday breakfast treat and came across this- settled all my cravings- thank you. Delicious and so easy to make with ingresdients already in my cupboard.. excellent.
Hi Evelyn, I’m so glad this recipe hit the spot! Happy Sunday!
I just made this for breakfast and holy crap is this good. I didn’t have high hopes because most mug cakes I make turn out terrible, but this is delicious! I used a maple & brown sugar oatmeal mix and maple peanut butter for this, so its nice and extra sweet!
So glad you enjoyed it!
Dreadful, sorry. Way way way too dry. It tasted like cardboard.
Omg! I tried this for breakfast and it is AMAZING. Thank u so much for sharing this recipe
I’m so glad you enjoyed it!
I made this without baking powder because there was none and our microwave isn’t digital so there was no way I could do 30 and 15 seconds. Had to turn the knob to 1 minute. It’s a tad dry but still delish. Thanks for sharing this!
How man calories? Thx
For the recipe for two, there are 943 calories, and about 500 from fat
I made it exact but used almond milk to make it vegan. And I’ve also used a vegan hazelnut spread instead of peanut butter. Its amazing. But I couldn’t wait the full five minutes so I’ve had to eat it pretty carefully haha
Oohh, those sounds like yummy substitutes! I always hate waiting for something to cool, when it comes to dessert, I always want it right that minute! I’m so glad you enjoyed it!
This was delicious. I needed cake and this totally satisfied. I didn’t have plain rolled oats so I used instant maple brown sugar oatmeal. Yummy.
I’m so glad you enjoyed it! It definitely hits the spot when you have a craving!
Can I add an egg?
Hi Karla,
The recipe doesn’t call for an egg.
Rebecca
This looks so good! We’re gluten free and I am printing out the recipe to try. (To make this recipe gluten free requires gluten free flours, certified gluten free oats, baking powder, and chocolate chips…for those that want to know.)
If I don’t want to use sugar, what can I use instead? Honey?
You can try leaving it out all together, I wouldn’t use honey as it’s a completely different base and could mess with the texture of the cake.
You can try coconut granules. I have used those cup-for-cup in baking and have not had problems. There are other cup-for-cup sweeteners that you can purchase. (Stevia, etc.)
You can try doing coconut sugar instead, I will tell you that coconut flour will not work with the ratios given.
Yes! A cake that can be ate for dessert or breakfast is my kind of cake! Your recipe looks divine like always! 🙂
This is such a great idea and looks so delicious. Thanks so much for sharing.
Thanks so much for stopping by!
Oh my goodness! I want to try your recipe soo bad! I’ve never had a mug cake but it looks and sounds perfect for breakfast right now! I’m off to try it!
Thanks, Carisa! It tastes just like peanut butter toast!
Pro Tip if it seems dry DO NOT add a splash of milk