Keto Chocolate Pumpkin Bundt Cake

Prep: 20 min Cook: 50 min Total: 70 min Servings: 12
Annie Lampella @ Ketofocus

By Annie Lampella, Pharm.D.

Published October 14, 2022 • Updated December 15, 2022

A chocolate pumpkin marbled keto cake

Reader Rating
5 Stars (1 Reviews)
Cake

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A keto pumpkin bundt cake with a swirl of chocolate cake marbled throughout. Make this cake the centerpiece at your next party this fall.

Marble cakes are really two cakes in one – a pumpkin cake and a chocolate cake. This keto pumpkin cake has a base of spongy pumpkin spice cake with a rich chocolate layer swirled throughout. Top this marvel by drizzling cream cheese frosting on the top and crushed nuts. For a keto dessert to impress, this marbled bundt cake will take centerstage. And to really go all out, bring pumpkin whoopie pies or a keto carrot carrot along with it. a bite taken out of a slice of bundt cake with a fork on the plate

How to make keto pumpkin bundt cake

  1. Combine wet ingredients for both layers – Butter, sugar free sweetener, eggs and vanilla.
  2. Divide wet ingredients into two bowls, one for the pumpkin cake batter and one for the chocolate cake batter.
  3. Pumpkin layer – Combine dry ingredients for the pumpkin cake – Almond flour, oat fiber, baking powder, salt and pumpkin pie spice. Then add in wet ingredients and canned pumpkin puree.
  4. Chocolate layer – Combine dry ingredients for the chocolate cake – Almond flour, oat fiber, baking powder, salt and cocoa powder. Then add in wet ingredients.
  5. Grease a bundt pan with butter and sprinkle oat fiber all over to help prevent sticking.
  6. Layer it – Add half the pumpkin batter. Followed by all the chocolate cake batter. Then remaining pumpkin batter.
  7. Bake for 50 minutes.
  8. Prepare cream cheese frosting.
  9. Drizzle sugar free frosting all over bundt cake.
close up of a marbled pumpkin and chocolate bundt cake topped with white icing
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Keto Chocolate Pumpkin Bundt Cake

5 (1) Prep 20m Cook 50m Total 70m 12 servings

Keto Pumpkin Bundt Cake Ingredients

Sugar Free Cream Cheese Glaze Ingredients

Step by Step Instructions

Step by Step Instructions

1
Prepare bundt cake pan

To a 9-inch bundt cake pan, coat the inside with a thin layer of butter. Using a mesh strainer, dust a small amount of oat fiber over the butter to coat. Set aside. Preheat oven to 350 degrees.

using a mesh to dust a bundt pan with flour
Ingredients for this step
  • Bundt Pan
  • Butter
  • Oat fiber
2
Combine wet ingredients for bundt cake

To a large bowl, cream together softened butter and sweetener. Mix with an electric mixer until fluffy and smooth (2-3 minutes). Add eggs one at a time. Then stir in vanilla. Set aside.

a bowl with cuttery wet ingredients inside
Tip Since you will divide the wet ingredients between the two layers, it's best to weigh your bowl before and after adding the wet ingredients, then divide by 2 to find how how much to add to each layer. You can always eyeball too if you don't have a scale.
Ingredients for this step
  • Unsalted butter (softened)
  • Sugar free sweetener
  • Eggs
  • Vanilla extract
3
Pumpkin layer: dry ingredients

In a medium bowl, add 2 cups almond flour, 1/4 cup oat fiber, 1 teaspoon baking powder, 1/2 teaspoon salt and pumpkin pie spice. Mix until combined.

dry ingredients of almond flour and oat fiber in a bowl
Ingredients for this step
  • Almond flour
  • Oat fiber
  • Baking powder
  • Salt
  • Pumpkin spice
4
Pumpkin layer: wet ingredients

To the dry ingredients, add half of the wet ingredient batter from step 2 and pumpkin puree. Mix with electric mixer until combined. Set aside.

orange pumpkin cake batter in a bowl
Ingredients for this step
  • Half of wet ingredients (step 2)
  • Pumpkin puree
5
Chocolate layer: dry ingredients

In a medium bowl, add remaining almond flour, oat fiber, baking powder and salt. Along with cocoa powder. Mix until combined.

chocolate dry ingredients in a bowl
Ingredients for this step
  • Almond flour
  • Oat fiber
  • Baking powder
  • Salt
  • Cocoa powder
6
Chocolate layer: wet ingredients

To the dry ingredients for the chocolate layer, add remaining wet ingredient batter from step 2. Mix with electric mixer until combined. Set aside.

thick chocolate cake batter mixed in a bowl
Tip Mixture will be thick like brownie batter.
7
Marble cake layers

To the prepared bundt pan, add 1/2 pumpkin cake batter. Smooth out with a spatula. Top with all of the chocolate cake batter. Smooth out again with spatula. Add remaining pumpkin batter. Spread to an even layer with the spatula.

spreading pumpkin cake batter on top of a layer of chocolate cake in a bundt cake
8
Bake

Bake at 350 degrees for 50-55 minutes or until a knife comes out clean when inserted into the center of the cake. Loosen the edges with a knife. Let cool for several minutes (5-10). Then place a wire rack on top of the bundt cake and flip over to pop our the cake from the pan.

a freshly baked bundt cake sitting on a towel
9
Cream cheese glaze

While cake is cooling, prepare the cream cheese glaze. To a medium bowl, mix together softened cream cheese with butter. Once fluffy, add sugar free powdered sweetener. Mix to combine. Add 2-3 tablespoons of nut milk or heavy cream.

pulling an electric mixer out of icing to show the thin consistency it needs to be
Tip Start with a small amount of milk, then add more in order to get a thinner consistency that will drip down the cake when pour it on top. Nut milk works better than cream for this.
Ingredients for this step
  • Cream cheese (softened)
  • Butter (softened)
  • Sugar free sweetener (powdered)
  • Nut milk or cream
10
Drizzle glaze

Spoon cream cheese frosting on the top of the bundt cake. Using the back of the spoon push the glaze over the edge to drip down the sides. Top with crushed pecans if desired.

spooning white cream cheese icing on the top of the bundt cake and pushing it along and down
Nutrition Per Serving
442 Calories
41.3g Fat
8.9g Protein
5.4g Net Carbs
16.4g Total Carbs
12 Servings
Nutrition disclaimer

The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

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a slice taken out of a cake showing the layers of pumpkin and chocolate on the cake

Add extra flavor and superfoods

Create a decant chocolate layer of this bundt cake with hints of cinnamon and turmeric by adding a scoop of Cacao Bliss. I partnered with Earth Echo for this recipe and used their Cacao Bliss to amplify the chocolate layer with a unique spice blend of superfoods. Cacao Bliss is a raw cacao powder that contains superfoods like turmeric, black pepper, cinnamon, lucuma and Himalayan salt. I like to use Cacao Bliss in my recipes as a substitute or in addition to cocoa powder. It adds a special flavor to chocolate baked goods and I get the healthy benefits from the superfoods. Get 15% off your order of Cacao Bliss when you use my code KETOFOCUS.
a slice of marbled bundt cake in front of a bag of cacao bliss

Other toppings and add-ins

Topping this keto marble bundt cake with cream cheese frosting and crushed nuts created a stunning presentation plus cream cheese pairs perfectly with pumpkin cake. Here are some other ideas you could add to the top of your cake or inside your cake.

Optional ingredients to add in:

  • Chocolate chips: For additional chocolate, sprinkle in 1 cup of chocolate chips into the pumpkin layer or both layers of your marbled cake.
  • Nuts: Chopped pecans, almonds or walnuts add additional nutty flavor and crunch to your pumpkin cake.
 

Topping variations:

  • Powdered sugar-free sweetener: Dust the bundt cake with a thin amount of powdered sweetener for a simple presentation.
  • Sugar free glaze: Make a simple glaze without the cream cheese by adding an additional 2 tablespoons of butter and use extra nut milk or heavy cream to thin out the glaze if needed.
  • Chocolate ganache: Melt chocolate with a teaspoon of butter or coconut oil. Then pour over the top of the low-carb bundt cake.
  • Coconut chips: Sprinkle unsweetened coconut flakes on top of the glaze for a hint of coconut flavor and crunch.
a bundt cake on a white cake stand with icing dripping down and nuts sprinkled all over

Oat fiber in keto baking

Oat fiber is added to the recipe to create a bakery style cake texture and to help absorb moisture from the eggs. Oat fiber is a zero carb keto flour used in conjunction with almond flour to improve the texture of baked goods. It comes from the husks of oats and is not the same thing as oat flour (which is finely ground oats).

Storage information

Store the keto bundt cake in refrigerator if making this ahead of time. Wrap (unfrosted) in plastic wrap to prevent moisture loss. The frosting can be made up ahead of time and stored in an air tight container in the refrigerator. Before serving the cake, let the cream cheese glaze sit at room temperature for 30 minutes before drizzling down the cake. This cake can be frozen although the texture and flavor may vary. To freeze, wrap the unfrosted cake in plastic wrap and store in a freezer safe bag or wrapped in aluminum foil.
Keto Chocolate Pumpkin Bundt Cake

Frequently Asked Questions

Is pumpkin keto?

Yes, you can fit pumpkin into the keto diet if you consume it in smaller quantities. 1/2 cup of pumpkin puree has 7 grams of net carbs.

How long do I cook this cake if I cut the ingredients in half?

For a smaller keto bundt cake, cut the ingredients in half and bake at 350 degrees for about 30-35 minutes.

About the Author
Annie Lampella, Pharm.D.

Annie Lampella, Pharm.D.

Annie is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis, she has over 14 years of experience developing family-friendly keto recipes based on the science of human metabolism.

Learn more about Annie View My Cookbook

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Reviews 3
5 Stars (1 Reviews)
  1. L
    Lisa Marie May 1, 2025

    Made this over the weekend and it feels like I am cheating! The chocolate and pumpkin layers go really well together, and I loved the texture. My husband didn’t even realize it was keto.

    Reply
  2. L
    Liana Hanson Oct 15, 2022

    Is there a gluten free alternative to the oat fiber? One article I read suggested quinoa flakes. Not sure how that would work, though.

    Reply
    1. Annie Lampella
      Annie Oct 15, 2022

      Oat fiber is naturally gluten free since oats are not wheat. The brand I linked to doesn't state that it's gluten free but there are others that do state this on the package.

      Reply

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