Keto Vanilla Mug Cake Recipe (Easy Recipe)

Table of Contents

Mug cakes are the best invention ever. They allow you to eat a small amount of dessert without overindulging, and they come together in minutes. The flavor varieties are endless as well!

These adorable little desserts can be made keto, gluten-free, sugar-free, vegan, and dairy-free. Mug cakes fit in so well with every diet out there so it’s no wonder they are so popular. People like quick and convenient recipes, especially when they are healthy desserts.

For this particular mug cake recipe, we are showcasing a sweet and light vanilla mug cake that is keto-friendly. The vanilla flavor comes from vanilla bean paste, which is a thick vanilla-flavored product much like vanilla extract. The difference is not only in the thickness of the product, but vanilla bean paste has whole vanilla beans inside, adding those little flecks of vanilla to your cake.

Some people do not like to see vanilla beans in their dessert, and that is okay. Simply swap out vanilla bean paste in this recipe for equal amounts of regular vanilla extract. Both iterations are delicious and have a rich vanilla flavor.


The cake batter itself is made with just a few pantry ingredients that you likely already have in the cabinet or fridge. A blend of almond flour and coconut flour adds an interesting lightness to the cake, while baking powder gives some lift. For sweetness, Stevia granules are added in place of any refined sugars. To keep the cake super moist, coconut oil is used. This also helps the cake from sticking to the mug.

This mug cake is healthy and keto, but you could also make it vegan. Use flax egg replacer, vegan yogurt to replace the sour cream, and omit the optional sugar-free whipped topping at the end. You could also make it dairy-free by only replacing the sour cream.

The best part of a mug cake is how quickly it cooks. They do not require any baking or use of the oven. Instead, they are cooked in the microwave! At one and a half minutes in your microwave, this mug cake cooks all the way through and produces a light and fluffy cake that will shock your taste buds.

Any additional flavors can be added to this base mug cake. You could add a teaspoon of cocoa powder for a chocolate variety, or natural peanut butter, or blueberries for a blueberry muffin-type mug cake. It could also be the perfect personalized dessert for two, each person deciding which ingredients go into their mug.

All you need is a mug, a spoon, and some pantry ingredients to create an amazing keto treat. Even those on diets can still enjoy a healthy dessert while feeling like it’s a cheat day. End your day right with a fabulous and easy dessert in under 2 minutes.

This mug cake is best served on the couch, in your fuzzy slippers, watching your favorite ridiculous movie. Mug cakes are all about self-care and recognizing when you need some cake, so treat yourself!

How to Make It

  • Prep Time5 min
  • Cook Time10 min
  • Total Time15 min
  • Serving Size2
  • Energy392 cal




In your favorite mug, melt your coconut oil for 20 seconds in the microwave. Remove from the microwave and stir so that the oil is not too hot. Hot oil can cook the egg prematurely, so just be sure it cools slightly.


To the oil, add the vanilla bean paste, sour cream, egg, and Stevia. Mix very well to combine with a spoon. Then add the flours, baking powder, and salt. Stir well to combine, but do not overmix.


Place in the microwave for 1 minute and 30 seconds. Remove from the microwave and let sit 1 minute. Top with sugar-free whipped topping, if desired.

  • Nutrition Facts

  • Serving Size2
  • Amount per serving
  • Calories392
  • % Daily Value*Standard DV
  • Total Fat32.5 g78 g41.67%
  • Saturated Fat16.4 g20 g82%
  • Cholesterol169 mg300 mg56.33%
  • Sodium69 mg2300 mg3%
  • Total Carbohydrate17.2 g275 g6.25%
  • Dietary Fiber8.3 g28 g29.64%
  • Total Sugars2.4 g
  • Protein12.4 g50 g24.8%
  • Calcium136 mg1300 mg10.46%
  • Iron2 mg18 mg11.11%
  • Potassium203 mg4700 mg4.32%

Share This Recipe

Skip to content