Keto Lemon Blueberry Bundt Cake, GF

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This past week I filled an order for a lemon blueberry bundt cake from my home keto bakery. It’s not typically on my menu, but they loved my lemon blueberry muffins so much, they wanted the bundt cake as they were celebrating their baby’s one year birthday.

Keto Lemon Blueberry Bundt Cake

They did order a regular cake from a local bakery for baby and friends, but didn’t want to break their own keto diet. They were so thrilled with how the bundt cake turned out, they sent me pictures of their celebration, thanking me for the cake. This is the best way to convey to you that this recipe is truly tested. 

I decided I had to share this bundt cake with you, which will be a wonderful addition to your Easter brunch or Mother’s Day brunch.  

Lemon blueberry bundt cake is keto friendly, paleo friendly and gluten free. Sweetened with Swerve, powdered erythritol, and no spike in blood sugar, and safe for diabetics. 


  • Almond Flour
  • Coconut Flour
  • Eggs
  • Avocado Oil
  • Lemon Juice
  • Lemon Zest
  • Lemon Extract
  • Blueberries
  • Xanthan Gum (helps to bind the flours during baking)
  • Baking Powder
  • Salt

Keto Lemon Blueberry Bundt Cake with Lemon Glaze

If you’re intimidated to make a bundt cake, because you’ve had problems in the past, I’m here to tell you that I have success every single time turning over my bundt cakes. I have to, as I have a bakery. I used to be fearful turning a bundt cake over, worrying about it sticking, until I developed a few tips.

I made this recipe into keto lemon blueberry muffins here. 

Tips for Successful Bundt Cake

I am somewhat an expert on making keto bundt cakes as I’ve made hundreds of them for my keto bakery. I have great success in turning them over and making sure they are properly baked in the middle without over-browning. 

  • Heavily butter your bundt pan.
  • Place bundt pan in freezer. This helps to prevent over-browning.
  • Spray pan with a baking spray (I only use avocado oil or coconut oil spray).
  • The cake is done at 210 F. but I take it out once it reaches 207. 
  • Set a timer for 15 minutes once you take your bundt cake out of oven.
  • Use a silicone knife to gently go around the edges now and at the end of fifteen minutes.
  • Using either a template (see this post) or a cake board, turn over. 
  • Cool completely before adding glaze. 

You can check out the lemon blueberry muffins here.

Tips for Adding fruit to Bundt Cake

Remember that the bottom of your bundt cake pan is the top of your cake. Don’t put any fruit on top of batter (which will be your bottom). Before I add fruit, I will roll my blueberries in some swerve confectioner’s sugar to help them from easily sinking to the bottom.

Add in half of your batter to bundt pan before adding any fruit. Keep in mind that it’s natural for blueberries to sink a bit to the bottom. Notice that in this cake there is fruit at the top which adds to its prettiness.

Keto Lemon Blueberry Bundt Cake Recipe with Almond Flour

How to add lemon flavor to a Keto Lemon Blueberry Bundt Cake

I do three things to add lemon flavor. Almond flour and coconut flour are the main ingredients and don’t absorb lemon flavor as easily as regular flour. This is why I add bottled lemon juice and extract to the fresh lemon juice and zest. You an use all fresh lemons. 

  • Fresh Lemon Juice and zest
  • Bottled Lemon Juice (can use all fresh)
  • Lemon Extract

Lemon Glaze for Keto Lemon Blueberry Bundt Cake

I have to share this Wilton Drizzle Spoon with you. It’s very inexpensive and so perfect for drizzling. I use this all day long in the bakery for all the glazes. 

This drizzle is made with fresh lemon juice and Swerve confectioner’s sweetener. If you don’t have any confectioner’s, you can take the Swerve granulated and put it in your food processor until you get a powdery texture.

I avoid lemon extract for the glaze, as it’s not necessary, but if you could use it if you’re out of fresh lemon juice.  Always taste first. You do want your glaze to be tart and lemony.  You have to judge how thick your glaze is and make adjustments as needed. Use a spoon like this to drizzle glaze. Garnish with fresh berries. 

I hope you enjoy this bundt cake as much as my customers do. Please let me know, and take a look around at all my keto bundt cakes. 

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Keto Lemon Blueberry Bundt Cake Recipe

Nutrition Value for Keto Lemon Blueberry Cake

Net Carbs: 2,  Calories: 136, Fat: 2 g

More Keto Bundt Cakes from Spinach Tiger

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Keto Triple Lemon Naked Cake with Lemon Cream Cheese Frosting

Keto Lemon Snack Cake

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2 from 1 vote

Keto Lemon Blueberry Bundt Cake

Keto Friendly Lemon Blueberry Bundt Cakes with Fresh Blueberries
Prep Time10 minutes
Cook Time35 minutes
Total Time30 minutes
Course: keto bundt cake
Cuisine: American
Keyword: blueberry, bundt cake, gluten free, keto bars, lemon cake
Servings: 12 slices
Calories: 184kcal
Author: Angela Roberts


Lemon Glaze

  • 1 cup Swerve Confectioner's or more as needed
  • 4 tablespoons lemon juice


  • Butter your bundt pan, heavily. It may take more than two tablespoons. Place in freezer.
  • Mix together almond flour, coconut flour, salt, baking powder, xanthan gum, Swerve granulated. Set aside.
  • Beat Eggs for 3 to 5 minutes.
  • Stream in melted butter.
  • Add lemon extract.
  • Add sour cream, lemon juice and zest.
  • Add dry mixture and mix just until mixed. Don't over mix.
  • Heavily butter bundt cake and freeze.
  • Pour batter into bundt pan only 1/4 way before adding blueberries. Add more batter and berries, but don't have any berries at the top, which ends up being the bottom of the cake.
  • Bake for 30 to 35 minutes at 325 degrees F., 180 C. Use a meat thermometer to test the center of the cake which should be 207 degrees F.
  • Once out of the oven, set the timer for 15 minutes. Gently take a knife around the edges of the bundt cake.
  • After 15 minutes, take a knife again around the edges. Using a flat plate or cake board, using both hands flip cake over. Allow to cool before glazing.


  • Mix lemon juice with Swerve Confectioner's sweetener. Drizzle over cooled cake. You may need to make adjustments adding more confectioner's if you need to thicken or more lemon juice or water to thin out.


Serving: 1g | Calories: 184kcal | Carbohydrates: 6g | Protein: 5g | Fat: 16g | Fiber: 3g

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If you love this recipe, please give it five stars. It means a lot. xoxo

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  1. 2 stars
    This was a flop for me. I baked it for 45 min and it came out way too moist, so put in for additional 15 minutes and still too moist and raw in middle. I don’t understand the frozen pan as that just adds more baking time. These are expensive ingredients to play with so I won’t try again. I am hoping to salvage this cake into a pudding somehow. Very disappointed.

    1. I’m sorry this happened for you. I have made this so many times to sell in my bakery. I’ve never had this problem. I’m assuming you followed the directions exactly, so I’m not sure what happened. The reason I start with a frozen pan is almond flour batters tends to brown more and this helps for less browning.

  2. I made this cake and it was delicious; however, I added some cream cheese to the glaze. I had to recently make a similar lemon and blueberry bundt cake for my daughter and the recipe called for making a cream cheese little frosting on top. She does not like the keto sweeteners so, I have to honor her thoughts, even though I like the keto version.

  3. You have recipe here for bundt cake but at the end it says muffins ? So ingredients and baking time maybe be off?

2 from 1 vote

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