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Keto Pumpkin Mug Cake Recipe

No need to miss out on pumpkin season if you’re living the low-carb life. This keto pumpkin mug cake is the quick and easy answer to enjoying pumpkin cake without the major sugar rush.

For about 6.8g net carbs, this pumpkin spice mug cake is moist, filling, and delicious to eat in place of traditional pumpkin pastries and desserts.

Pumpkin cake in a mug topped with whipped cream.

Make a Pumpkin Mug Cake Keto Friendly

To me, part of living a ketogenic lifestyle long term is finding low-carb replacements for the desserts I love. I used to live for sugary pumpkin goodies throughout the fall.

Now, I can still enjoy pumpkin treats in moderation using keto friendly ingredients. I also find that moderation is so much easier with high fat foods. Where I used to go back for seconds and thirds of a pumpkin cake, I am full and satisfied after one keto mug cake thanks to the fats.

Overhead shot of pumpkin mug cake ingredients.

Low-Carb Pumpkin Mug Cake Ingredients

(Exact measurements are in the recipe card below)

  • Almond flour
  • Coconut flour
  • Erythritol
  • Baking powder
  • Pumpkin pie spice
  • Melted butter
  • Pumpkin purée
  • Egg

Pumpkin Cake in a Mug Directions

In a microwave-safe mug, mix the almond flour, coconut flour, baking powder, erythritol, and pumpkin pie spice until well incorporated.

Dry pumpkin mug cake ingredients on a fork above the mug.

Add the melted butter, pumpkin purée, and egg and stir until smooth.

Pumpkin mug cake batter in a mug surrounded by ingredients.

Cook in the microwave for 90 seconds or until the top is opaque and cooked through. It may take longer due to the density of pumpkin.

Cooked pumpkin mug cake in a white mug around other ingredients on table.

Top with whipped topping if you choose and serve right away.

Keto pumpkin mug cake in a white mug topped with whipped cream.

Recipe Tips and FAQ

How long to microwave a pumpkin mug cake.

Pumpkin is very moist and dense, so cooking time might take longer depending on your microwave. Check it after 1 minute and 30 seconds, but it may require an extra 15 seconds or so.

Pumpkin cake in a mug by a fork and a tray.

Can I substitue the flour in this mug cake?

Normally, mug cakes are pretty forgiving and it’s easy to swap out the flours. With this pumpkin mug cake that’s not the case. Results may vary quite a bit if you make flour substitutions.

Fork full of pumpkin cake and whipped cream.

What can I add to my low-carb pumpkin cake?

If you like a little extra going on in your mug cake, here are some possible mix-ins:

  • Coconut shreds – like in this Halloween Mug Cake
  • Low-carb baking chips
  • Walnuts
  • Pecans
  • Keto sprinkles

Be sure to factor in the net carbs of any mix-ins you add.

pumpkin cake in a mug topped with whipped cream
Yield: 1 mug cake

Keto Pumpkin Spice Mug Cake Recipe

Prep Time: 3 minutes
Cook Time: 2 minutes
Total Time: 5 minutes

Moist, delicious, and filling low-carb pumpkin mug cake for one.

Net carbs in cake without whipped topping: 6.8g

Ingredients

  • 2 Tablespoons almond flour
  • 2 Tablespoon coconut flour
  • 1 Tablespoon erythritol, granular
  • ½ teaspoon baking powder
  • ½ teaspoon pumpkin pie spice
  • 2 Tablespoons melted butter
  • 2 Tablespoons pumpkin purée
  • 1 egg, beaten

Instructions

  1. In an 8 ounce, microwave-safe mug, mix the almond flour, coconut flour, baking powder, erythritol, and pumpkin pie spice until well incorporated. 
  2. Add the melted butter, egg, and pumpkin purée. Stir until smooth. 
  3. Cook in the microwave for one minute and thirty seconds or until the top is opaque and cooked through. 
  4. Top with whipped topping and serve immediately.

Notes

Pumpkin is very moist and dense, so cooking time may take longer depending on your microwave.

Results may vary if making flour substitutions with this particular mug cake.

Make sure to use 100% pure pumpkin, not pumpkin pie filling.

Nutrition facts calculated using Carb Manager and are not guaranteed to be 100% accurate.

Main nutrition facts include the cake without whipped topping.

Net carbs in mug cake without whipped topping: 6.8

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Nutrition Information:

Yield:

1

Serving Size:

1 mug cake

Amount Per Serving: Calories: 436.7Total Fat: 37.5gCholesterol: 247.5mgCarbohydrates: 27.1gNet Carbohydrates: 6.8gFiber: 8.3gSugar: 4.3gSugar Alcohols: 12gProtein: 11.8g

Did you make this recipe?

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More Microwave Cakes to Try

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Keto pumpkin spice cake in a mug with whipped cream.

Please let me know if you try this keto pumpkin mug cake recipe!

Liz

Friday 26th of November 2021

I love making mug cakes! Perfect to fill that sweet tooth graving, without having to make a whole cake!

Jen Soltys

Monday 29th of November 2021

Definitely! If I make a whole cake, I eat a whole cake. :/ LOL Thank you! :)

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