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Keto Halloween Mug Cake Recipe

Halloween candy screaming your name from the bowl? If you’re sticking to a low-carb diet on Halloween, gather some keto Halloween recipes to help keep you on track without feeling deprived.

There are many sweet keto snacks out there to satisfy your sweet tooth without blowing your diet. See how to whip up this keto Halloween mug cake in about 5 minutes.

pumpkin cake in a mug topped with whipped cream and halloween colored shavings

Keto Halloween Mug Cake

I now have a few Halloweens on keto under my belt. Sitting on the couch with the candy bowl waiting for trick-or-treaters, it’s most definitely tempting to snack on the treats. However, I know all too well how I will feel after sugary candy and it’s not good for me or anyone around me.

At about 7.5g net carbs, this quick keto dessert hits the spot. The pumpkin cake is filling, sweet, and does not send my blood sugar on a roller coaster ride. This mug cake is now on my list of the best keto Halloween treats.

overhead shot of pumpkin mug cake ingredients

Halloween Mug Cake Ingredients

(Exact measurements are in the recipe card)

  • Almond flour
  • Coconut flour
  • Erythritol
  • Baking powder
  • Pumpkin pie spice
  • Melted butter
  • Pumpkin purée
  • Egg
  • Shredded coconut
  • Food coloring

Halloween Pumpkin Spice Mug Cake 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, egg, and pumpkin purée. 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.

cooked pumpkin mug cake in a white mug around other ingredients on table

Divide the shredded coconut into 3 small bowls and use food coloring to color it to the desired shades.

Read more about how to make keto coconut sprinkles here.

pumpkin cake in a mug topped with Halloween colored coconut shreds

Top the mug cake with whipped topping and shredded coconut.

closeup of pumpkin halloween cake in a mug

Cake in a Mug Recipe Tips & FAQ

Pumpkin cake might take longer in the microwave.

Since pumpkin is so moist and dense, it may take a bit longer in the microwave. After testing this pumpkin cake a few times, twice it took 1 minutes and 30 seconds and once it took 1 minutes and 45 seconds. Be sure to check yours with a toothpick before digging in.

fork with pumpkin cake on it above the halloween mug cake

Can I substitute the flour?

Mug cakes are usually pretty forgiving and easy to swap flours. With this particular mug cake, that’s not really the case. Please know that results may vary if you use different flour than listed.

halloween mug cake with a bite taken out of it

Do I have to use the coconut shreds?

The colored coconut shreds are optional. They are mainly there to provide Halloween vibes. Only 1 Tablespoon is used in this recipe, but feel free to add more to the cake mix if you like the flavor and texture of coconut shreds.

pumpkin cake in a mug topped with whipped cream and halloween colored shavings
Yield: 1 mug cake

Keto Halloween Mug Cake

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

Low-carb pumpkin spice mug cake that's dressed up for Halloween.

Net carbs in cake without whipped topping and with 1 tablespoon of shredded coconut: 7.5g

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 puree
  • 1 egg, beaten
  • ¼ cup shredded coconut
  • Food Coloring

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. Divide the shredded coconut into 3 small bowls and use food coloring to color it to the desired shade. 
  5. Top the mug cake with low-carb whipped topping and shredded coconut.

Notes

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

Main nutrition facts include the cake with 1 tablespoon of coconut shreds without whipped topping.

Net carbs in cake with 1 tablespoon of coconut shreds: 7.5g

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Nutrition Information:

Yield:

1

Serving Size:

1 mug cake

Amount Per Serving: Calories: 473.4Total Fat: 40.9gCholesterol: 247.5mgCarbohydrates: 28.5gNet Carbohydrates: 7.5gFiber: 9gSugar: 4.6gSugar Alcohols: 12gProtein: 12.1g

Did you make this recipe?

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More Low-Carb Fall Desserts

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fork full of halloween mug cake with whipped cream above the mug

What are you doing for Halloween this year? Let me know if you try this keto Halloween mug cake!

Liz

Thursday 14th of October 2021

What a great idea! Love the colors you added on top!

Jen Soltys

Wednesday 20th of October 2021

Thank you! :)

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