Low-Carb Mug Cakes

5 from 1 vote

Crush cravings with this delectable, 5-minute dessert.

Mix and max your add in to fit your sweet cravings.

Enjoy this single-serving, low-carb mug cake to satisfy your sweet tooth and stay on track to your health goals! This delicious little cake can be made with different add-ins, so feel free to mix and match to make the perfect, custom treat in minutes. Made with mostly classic kitchen staples, try this recipe today for a personalized dessert! The entire family can get in on the mug cake fun!

Low-Carb Mug Cakes: Single Serving Sweets

This yummy mug cake takes less than a minute to cook!

I love when I can quickly put together simple ingredients to create a warm and tasty treat just for myself. Many find it easier to stick to their goals with a quick, single-serving dessert because it removes the temptation to overeat. It also means your dessert will always be fresh, warm, and moist when you’re ready for it. And then there’s the added bonus of no food waste! We could go on and on. 

Low-Carb Desserts

If you get a late night sweet tooth, you need to try these Low-Carb Mug Cakes!

This dessert has been given a low-carb stamp of approval thanks to ingredient swaps like almond flour (instead of regular wheat flour) and stevia for sugar. Choosing low-carb desserts can be useful for those with diabetes or people following keto or low-carb diets. Having some sweeter options can be hard to come by if you are trying to keep your carbs down. That said, each of our low-carb mug cakes contains only 6 grams of carbohydrates, making this dessert great for low-carb diets (and even keto-approved if you plan ahead!)

Customize Your Low-Carb Mug Cakes

Dig into this ooey gooey, rich and moist cake for a late night snack!

Try to mix and match some of these delicious add-ins to personalize your mug cake to your liking! These are only some options. Feel free to get creative! And be sure to let us know what add-ins you chose in the comment section below!

Nut Butter

Add nut butter for creamy textures and nutty flavors. You can use any nut butter, such as peanut, almond, or even sun butter, if you have allergies! We suggest swirling about one-half to one full tablespoon of nut butter into the batter before cooking and then drizzling one to two teaspoons on top after cooking for extra creamy goodness!

Cocoa Powder

For an easy chocolate mug cake, mix two teaspoons of cocoa powder into the batter before cooking. Then, you’re ready to go! You can also add some chocolate chips (more below) for even more chocolatey flavors.

Chocolate Chip

You can add chocolate chips as is or add them with nut butter or cocoa powder for a delicious mixture of flavors. We suggest going for sugar-free chocolate chips to keep the carb count of this recipe low.


Mix in some rainbow sprinkles for a celebratory birthday cake look. Personally, I love putting sprinkles on most of my sweets because it makes my desserts look so pretty and fun to eat! You can even top this birthday mug cake with a dollop of whipped cream (or vanilla ice cream) to finish off the look. 

Create this Mug Cake

Throw a mug cake party with the kiddos before movie night!

This delectable dessert is so stinkin’ easy to prepare! Simply add all the ingredients (except for the add-ins) into a microwave-safe mug and stir until well combined. Then, gently mix in your choice of add-ins. Microwave your mug cake on high for 45 to 60 seconds until the cake has risen and has a few air bubbles. Keep an eye on it to make sure it doesn’t overflow. Once it’s ready, grab your spoon and dig in!

Low-Carb Mug Cake Recipe

5 from 1 vote

Low-Carb Mug Cake

Easy, rich, and moist cake to satisfy your sweet tooth.
Prep Time 4 minutes
Cook Time 1 minute
Total Time 5 minutes
Yield 1 person
Serving Size 1 mug cake
Course Dessert, Snack
Cuisine Universal


  • 1 1/2 tablespoons butter, melted but not hot
  • 1 egg
  • 1/2 teaspoon pure vanilla extract
  • 3 tablespoons almond flour, super-fine
  • 2 tablespoons stevia
  • 1/4 teaspoon baking powder
  • 1/8 teaspoon kosher salt


  • peanut butter
  • cocoa powder
  • sugar-free chocolate chips
  • rainbow sprinkles
  • whipped cream


  • Add all ingredients (except for the add-ins) into a microwave-safe mug and stir until well combined. Gently mix in your choice of add-ins.
  • Microwave on high for 45 to 60 seconds until the cake has risen.


*The nutritional information does not include any add-ins. 

Nutrition Information

Serving: 1mug cake | Calories: 339kcal | Carbohydrates: 6g | Protein: 10g | Fat: 32g | Saturated Fat: 13g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 209mg | Sodium: 504mg | Potassium: 170mg | Fiber: 2g | Sugar: 1g | Vitamin A: 762IU | Calcium: 118mg | Iron: 2mg |
SmartPoints (Freestyle): 13
Keywords Low-Carb

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Kelsey Butler, MS, RDN

Kelsey Butler is a Registered Dietitian and recipe developer. From a young age, Kelsey found a love for creating delicious recipes. Now, with a Master's in Nutritional Sciences, Kelsey uses her culinary skills to create healthy and unique recipes for many different diets. She is passionate about creating a healthy relationship with all foods and recipes that everyone can enjoy. Kelsey has a passion for cooking, but she also enjoys the outdoors, staying active, and traveling. She is currently living with her partner in New Zealand.

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1 Comment

  1. Loved the easy quick adaptability of this recipe I added coffee and walnuts topped with cream cheese and OMG so easy and yummy definitely hit the spot best low carb mug cake to-date I say try it yourself you won’t be disappointed 😍5 stars

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