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Keto Vanilla Mug Cake Recipe

Louise | August 19
Keto Vanilla Mug Cake Recipe #keto

America is a cake country. Birthday? Make a cake. Anniversary? Cake. Wedding? Cake. Going away party? Cake again.

As surprising as it may be despite all of these opportunities for cake, sometimes you want a slice and there aren’t any celebratory occasions on the horizon. What to do?

You could make a whole cake, but I think this keto vanilla mug cake is a much better option.

Watch how easy it is to make our single serving cake:

Mug Cake Tips

Making the perfect cake-in-a-mug requires some trial and error. Lucky for you, I think I’ve got the hang of it.

First, make sure your egg is on the smaller side. If you think about it, most cake recipes only call for an egg or maybe two – and that’s for an entire cake to feed many people.

If your egg is too big, it will mess with the taste and texture of your mug cake.

Second, make sure you’re using an appropriately sized cooking vessel. You want it to be half full at most when you’re cooking. If your mug is small you may want to split it in half and make two babycakes, but adjust your cook time accordingly.

Microwave-safe bowls work just as well and often alleviate the capacity issue.

Keeping it Keto

I know you may be used to eating cake a certain way. Cake may seem incomplete without its favorite sidekick, frosting.

That may be the literal “icing on the cake” but even a keto frosting recipe may be too much for you in conjunction with the cake.

That’s because although this vanilla mug cake is keto and low-carb, it does have some carbohydrates. And even your best-of-intentions coconut cream frosting may push you over the edge.

OK, you know that frosting might be overkill when your ketosis is on the line. But what about some berries?

I suppose you could, but fruit has carbs too. As fruits go, berries tend to have less carbs than fruits like bananas, but some are better than others.

Blackberries, raspberries, and strawberries are your best options. Top your cake with just enough to add some flavor.

Figuring Out Your Macros

Are you fitting this recipe into your meal plan? Use this one-question keto macro calculator and get your daily macros in seconds!

You’ll take the calculations and/or guesswork out of determining what you can eat, and how much. Now have your cake and eat it too!

Keto Vanilla Mug Cake Recipe #keto

Keto Vanilla Mug Cake Recipe #keto

Keto Vanilla Mug Cake Recipe

  • Author: Louise Hendon
  • Prep Time: 3 minutes
  • Cook Time: 2 minutes
  • Total Time: 5 minutes
  • Yield: 1 serving 1x
  • Category: Dessert, Snack
  • Cuisine: American



  1. Blend all the ingredients together.
  2. Pour the mixture into a microwaveable mug or cup and microwave on high power for around 90 seconds (the exact timing may differ).


All nutritional data are estimated and based on per serving amounts.

Net Carbs:  3 g


  • Calories: 369
  • Sugar: 2 g
  • Fat: 31 g
  • Carbohydrates: 11 g
  • Fiber: 8 g
  • Protein: 13 g

Louise co-founded Louise's Foods, Paleo Living Magazine, Nourishing Brands, & CoBionic. She has considerable research experience but enjoys creating products and articles that help move people just a little bit closer toward a healthy life they love.