This 3 ingredient peanut butter mug cake is an easy, quick and no-fuss treat. It is flourless, fudgy, made in the microwave in just 1 minute, and so good!
I love single-serving treats, not only because they are simple but also because there is no waste and no leftover slices.
Don’t miss my popular mug cake recipes, Oreo Mug Cake, Biscoff Mug Cake, Red Velvet Mug Cake (No Egg) and Hot Cocoa Mug Cake.
3 Ingredient Peanut Butter Mug Cake
I’m so proud of how this Peanut Butter Mug Cake turned out! It has an excellent combination of the best taste and texture a mug cake can ever give you. Its sweetness is just enough to be labelled as delicate and simple, yet it would definitely make you come back for more.
While the taste is utter perfection, the texture is also promising, being moist, soft, fluffy, and rich. Once you learn the exact way of making this dessert at home, there will be no room for failing this recipe.
You may have your 3 Ingredient Mug Cake any time of the day at any given meal. It may serve as your breakfast for an early sweetness boost or as your lunch after a busy morning at school or work.
Why We Love This Recipe
Mug cakes are an incredibly delicious treat to make and serve, but with the flavor of peanut butter? It surely is the perfect mug cake.
Here are some of the best things about this recipe that will make you gather all of its ingredients and copy the step-by-step instructions:
- It is made with only 3 ingredients and all of which can be found in your pantry or be bought from the nearest convenience store.
- The step-by-step process of making this treat is quick and easy to follow. In under 5 minutes, you will already have your mug cake fresh from the microwave.
- This dish is suitable for any age. Adults and children alike will have a blast devouring mug after mug of this dish.
- As this recipe does not contain flour, it is completely gluten-free!
- The recipe is dairy-free as well.
What's in This 3 Ingredients Mug Cake
Peanut Butter. Peanut butter is the base ingredient for this recipe as it is also the main flavor of the dish. It will give your mug cake a salty, nutty, and sweet flavor. I prefer to use creamy peanut butter, but you may use crunchy.
Granulated Sugar. To add more sweetness to the recipe, you should add granulated sugar.
Egg. Adding egg to the mug cake batter will help it rise a little bit and form a moist texture.
Chocolate Chips (optional). If you want a chocolatey taste mixed with your peanut butter, you may add some of these chocolate chips for toppings.
“See the recipe card for full information on ingredients and quantities.”
Variations & Substitutions
- An easier substitute for granulated sugar is brown sugar.
- There are many options for toppings you may choose from other than chocolate chips. For soft and creamy toppings, you may top your mug cake with whip cream. If you want a pillowy texture, you may consider using marshmallows instead. However, if you prefer your homemade mug cake as it is, you don't have to add any toppings at all.
How To Make This 3 Ingredient Peanut Butter Mug Cake?
One: In a small mixing bowl, whisk together all the ingredients until combined.
Two: Transfer the batter into a microwave-safe mug or ramekin. Scatter chocolate chips on top (if using).
Three: Microwave for 1 minute. Remove from the microwave and allow it to sit for a minute before eating.
Top Tips!
- The mug that you use must be sturdy and heat-resistant (you don't want your cup to crack) but also not become excessively hot to hold the mug cake while it is being baked in the microwave.
- To remove the mug from the microwave, place an oven glove or a tea towel around the handle. Allow the mug cake to cool for a few minutes before cutting into it.
- Do not overcook! It takes no longer a minute to bake this dish, and overcooking it will result in a dry and hard mug cake opposite to the fudgy, rich, and moist one that we are trying to achieve.
Serving Suggestions
This mug cake is a simple treat that goes well with almost anything you can think of. You may pair it with Chocolate Milk Tea or Chocolate Bubble Tea depending on your preference.
Personally, I like to serve along side my Greek Yogurt Smoothie in the morning.
You can also serve it alongside chicken or spaghetti for more meals.
Recipe FAQs
Sometimes peanut butter, aside from being sweet and nutty, can taste a little bit bitter, and to remove this undesirable taste, consider adding more sugar to the batter.
Absolutely! Substitute your egg with one or two tablespoons of whole milk. Your mug cake won't be as moist without the egg, but the milk will still help combine all the dry ingredients as one.
More Peanut Butter Recipes
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3 Ingredient Peanut Butter Mug Cake
Equipment
- Microwave
- Microwave-safe mug
Ingredients
- 3 tablespoon peanut butter
- 2 tablespoon granulated sugar
- 1 large egg
- 1 teaspoon chocolate chips (optional for topping )
Instructions
- In a small mixing bowl, whisk together the 3 ingredients until combined.3 tablespoon peanut butter, 2 tablespoon granulated sugar, 1 large egg
- Transfer the batter into a microwave-safe mug or ramekin. Scatter chocolate chips on top (if using).1 teaspoon chocolate chips
- Microwave for 45 seconds-1 minute. Remove from the microwave and allow it to sit for a minute before eating.
Notes
- The mug that you use must be sturdy and heat-resistant (you don't want your cup to crack) but also not become excessively hot to hold the mug cake while it is being baked in the microwave.
- To remove the mug from the microwave, place an oven glove or a tea towel around the handle. Allow the mug cake to cool for a few minutes before cutting into it.
- Do not overcook! It takes no longer a minute to bake this dish, and overcooking it will result in a dry and hard mug cake opposite to the fudgy, rich, and moist one that we are trying to achieve.
- An easier substitute for granulated sugar is brown sugar.
- There are many options for toppings you may choose from other than chocolate chips. For soft and creamy toppings, you may top your mug cake with whip cream. If you want a pillowy texture, you may consider using marshmallows instead. However, if you prefer your homemade mug cake as it is, you don't have to add any toppings at all.
jaime geiser says
How much brown sugar do I use instead of white?
Radwa says
The same amount.
Lilly Brown says
Yummy recipe, works well but I added only 1 ½ tablespoons of sugar and it was still very sweet so you might want to consider reducing the amount of sugar.
Nicole Hammer says
I love easy recipes, especially for desserts.
Dian says
Yum, used brown sugar and put a broken chocolate cookie in it.