Sugar Free Texas Sheet Cake Recipe (Keto Friendly)

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This is my most popular cake in my home keto bakery. You can make the chocolate cake from scratch, which is very easy or use the Swerve boxed cake mix, before adding the Texas sheet cake glaze. 

If you live in Nashville you may have seen me make on Talk of the Town. 

Best Sugar Free Chocolate Texas Sheet (Keto Friendly)

I believe I have the BEST keto chocolate cake recipe. I’ve worked and reworked my chocolate base until I thought it was good enough to star in my home keto bakery I started in July of 2019.  This is one of the most requested cakes along with my Keto German Chocolate Cake.

Texas Sheet Cake
Bakery

Swerve Boxed Cake Mix

I also made a sugar free Texas Sheet Cake with the Serve Box Cake mix and it was done in 30 minutes start to stop. It tasted just as good as any Texas Sheet Cake I’ve ever had, and you would never know it’s sugar free.

If you haven’t heard of Swerve, please read my article here. 

When Swerve sent me a few box cakes to try, I figured it would be a decent product, as you all know I’m an avid baker and I use powdered erythritol as a sugar substitute to keep it low carb.

The first time I used a Swerve Box Cake, I actually used two boxes to make a double layer cake for a birthday. I made used both a chocolate cake and a vanilla cake to make a double layer cake with this sugar free chocolate frosting for a birthday and people loved it. 

Low Carb Sugar Free Texas Sheet Cake Recipe from Spinach TIger

Sheet Pan Cakes 

I use a quarter sheet pan. I love the USA brand. I’ve had mine for years. It’s warp resistant and it’s the perfect size for Swerve one layer sheet pan cake. They have one slightly larger which also holds the same recipe, and if you use a half sheet pan, just double the recipe.

Texas Sheet cake Glaze is made on top of the stove

The icing is made on top of the stove as soon as the cake comes out of oven, using Swerve, unsweetened cocoa, vanilla, heavy cream, butter and pecans. Do not put butter in pan and melt before adding ingredients. Add butter LAST, so it doesn’t separate. 

It’s so good. I’ve seen some recipes that add coconut and you certainly could add unsweetened coconut, which will add even more texture.

sheet pan cake promo graphic

If you’re wanting portion control, this is the way to go. I was able to cut 24 pieces of this delicious cake. The pieces freeze very well and you can microwave for about ten seconds when you need that little bite of chocolate.

Sugar Free Texas Sheet Cake Recipe From Spinach Tiger (Keto Friendly)

The Swerve chocolate cake makes this recipe very easy to throw together.

You can make individual Texas Sheet cake as I do in my bakery. This recipe will make 12 individual Texas sheet cakes.

You CAN Make this Keto Texas Sheet Cake from Scratch

I recently made a video which is being edited making this from scratch. The recipe is below in case you don’t want to use the box cake.

Texas Sheet Cake is the perfect cake to make for the holidays, game day or even a tailgating party.

More Low Carb Keto Desserts From Spinach Tiger

50 Keto Dessert Recipes from Spinach Tiger

Make Your own Chocolate Cake for Keto Texas Sheet Cake

If you want to make your own chocolate cake for this recipe, it’s included below and I have the macros. 

Macros for the Chocolate Texas Sheet Cake from Scratch

There are 2 carbs, 3 fiber, for a 0 net carb (195 calories) per serving of the cake made from scratch. There are 24 servings.

Learn All about Swerve in this article, why I use Swerve.

Texas Sheet Cake
Print Recipe
4.59 from 60 votes

Sugar Free Texas Sheet Cake, Using Swerve Box Cake Mix

Low Carb, Sugar Free Texas Sheet Cake using Swerve’s Box Cake and Swerve Confectioner’s Sugar to Make Chocolate Pecan Frosting.
Prep Time10 mins
Cook Time15 mins
Total Time25 mins
Course: Dessert
Cuisine: American
Servings: 24
Calories: 195kcal
Author: Angela Roberts

Ingredients

  • This recipe contains Amazon affiliate links which earn a small commission.
  • Make Cake from Scratch or Used a Boxed Cake Swerve Chocolate Cake

Chocolate Cake From Scratch

Frosting

  • 1/2 cup unsalted butter
  • 1/3 cup heavy cream
  • 4 tablespoons unsweetened cocoa
  • 1 cup chopped pecans
  • 1 cup Swerve Confectioner’s Sugar
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon sea salt
  • 2 tablespoon whole milk
  • 1/2 cup unsweetened coconut optional
  • Kitchen Tools
  • USA Quarter Sheet Pan

Instructions

Make Box Cake or Make Cake From Scratch

  • Spray a quarter sheet pan with baking spray.
  • If using Swerve Boxed Cake Mix, Prepare batter as directed and pour into baking sheet. Bake for 15 minutes at 350 degrees. Center should spring back.
  • As soon as cake it out of the oven, make glaze topping and pour warm topping over warm cake.

Chocolate Glaze Topping

  • Combine the cocoa, cream, Swerve and butter for the frosting together in a saucepan. Do not put butter in first. Do not melt butter before adding other ingredients or it will separate. Continue stirring.
  • Bring to a slow boil.
  • Remove from the heat and stir in the salt and vanilla.
  • Add two tablespoons of milk if needed. Stir in pecans.
  • Pour over cake.
  • Cool and cut into 24 small pieces.

Chocolate Cake from Scratch

  • Mix all dry ingredients, except Swerve, together including sifted cocoa. Set aside.
  • Mix oil and Swerve together.
  • Add eggs one at a time, until thoroughly incorporated.
  • Add vanilla.
  • Mix milk and sour cream together. Add to egg mixture.
  • Add dry ingredients to these wet ingredients.
  • Bake in quarter sizer sheet pan for 15-20 minutes, until the center is 210. F.
  • Once out of oven, make topping and pour over warm cake.
  • Do not make the glaze topping until the cake is out of the oven.

Notes

I’ve exchanged the chocolate cake recipe from scratch for a new and improved one. Let me know if you want the old recipe.
Re: Xantan Gum: It’s not necessary. It does help to keep cake from being to crumbly, so I add a touch to my keto baked goods. You do not have to use it.

Nutrition

Serving: 1of 24 | Calories: 195kcal | Carbohydrates: 3g | Protein: 5g | Fat: 18g | Polyunsaturated Fat: 3g | Fiber: 3g

Please follow me on instagram. If you make this recipe,  please tag me #spinachtiger.

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

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74 Comments

  1. 5 stars
    Texas Sheet Cake was always a family favorite, though I never knew its provenance. We called it Hot Fudge Cake. But my mother is now diabetic, and we have gone Keto for her health – and ours! I’ve lost 15 pounds, Hubby has lost 25; Mom has lost 50 pounds and is no longer insulin dependent. We are absolutely Keto believers, and keep it pretty simple and clean. Once in a while you NEED a celebratory treat. Mom turns 80 next month, and I’ve been trying out Keto cake recipes for her birthday. This one, finally, is IT. I left the pecans out because Mom isn’t a fan of nuts or coconut. It’s still perfect. I love how glass-shiny the glaze is. So fancy! Thank you for these outstanding cake and frosting recipes.

  2. 5 stars
    I have made this before and it was awesome, I used the from scratch version. I am thinking about making it again for me and my husband for our anniversary. My blood sugar/ketones react badly to swerve…could I sub allulose? If so do you have any recommendations for the amount?

  3. I am super excited to have found this because the Texas sheet cake has always been a favorite, and my husband has recently been diagnosed with diabetes. I’m about to make it for the first time but wondered about the 10 Tablespoons of cocoa powder—that seems like a LOT. If I cut back a bit on it, should I increase the almond flour?

    1. Should you at coffee to this recipe to help bring out the flavor of the chocolate?
      I have found in recipes from scratch adding coffee helps the flavor.

      Curious if you think it would add flavor. If so, how much?

  4. 5 stars
    Trying to find diabetic recipes is hard-This is amazing! I love the post about adding cinnamon, but I added sugar free chocolate chips on top. I will try cinnamon next time. Made this with my niece and it’s to die for!!!

  5. I saw a recipe to use cake mix to make texas sheet cake cookies, do you think this would work?

    Thanks for the recipe. I am going to try this one.

    1. 4 stars
      I made your cake from scratch and then the icing. It turned out delicious! I added the butter last to my icing ingredients but it still separated and would not combine Bit putting it on the warm cake seemed to soak the butter up. Still great tasting

  6. 5 stars
    This cake is hands down the best Texas Sheet Cake recipe! Wow! I did add a teaspoon of cinnamon as my regular recipe had it and it was amazing!

  7. Could this sheet cake be made in other flavors? And how would I do that? I have kidney disease and need avoid chocolate because of the phosphorus content.

        1. 5 stars
          This turned out great!! Cake was so moist and the texture was the same as regular non-keto cake! I didn’t have any swerve so I used about 3/4 cup allulose sweetener and 1/2 tsp stevia powder to sweeten the cake and it worked well. I also used chopped cashews instead of pecans in the frosting bc that’s all I had on hand. It was delicious! Definitely will be making this again!

  8. Can this be made in a 13 x 9″ pan? If so, how long should I bake it, or should I just bake it until it “springs back in the center”?

  9. Hello — do you think you could double this receipe? If so do you think a half sheet pan?
    (I’m going to make this for my father-in laws birthday and take to the senior center for him to share)

  10. Hi! So I was worried about the cake being too thin in my 9X23(half sheet)…I had a Swerve mix I’ve been wanting to try! I did it in a 9-inch. but I did your icing, kept stirring. It separated when I tried to bring it to a boil, as the recipe states.. so frustrating. I stirred it on low for 5 minutes then turned it up bc it wasn’t ”boiling”… can you tell me what I did wrong? Thanks in advance!

  11. 5 stars
    Oh my cheeses this is hands down the BEST keto dessert I’ve ever made and it was easy!!! Just wondering how to store the cake? Can it stay on the counter or does it need refrigerated?
    Thanks for this amazing recipe!!

  12. Yesterday was my birthday and I had the Swerve cake mix on hand so made this amazing cake. I ran out of vanilla so used 1/2 coconut extract in the cake and strong coffee for the water. I used strong coffee in the frosting too instard of vanilla. So delicious!

  13. 5 stars
    Guys, Thanks For sharing this Great Recipe. My Family Loved it. I am definitely sharing this recipe and this website with my friend. Hope they also love it. Thank you again for sharing such a great recipe.

  14. 5 stars
    Just finished making this and I have to admit I was sceptical being a big fan of the original Texas sheet cake but it turned out amazing!!! Followed the directions exactly as written and loved the end result! Thank you so much for this awesome recipe! It’s by far the best low carb dessert I’ve made so far!

  15. THIS CAKE WAS AMAZING!!! I made the one from scratch and made my own topping of just whipping cream, cream cheese, vanilla, and sweetner. I garnished it with fresh strawberries… DELICIOUS!! my mon-keto hubby Loved it as well!!
    Finally a krto cake I enjoy!!

  16. This is cake is so yummy either way you make it, it’s a favorite in our house! Do you know how to stop/reduce the crystallization of the erythritol/swerve in the frosting. I’m trying to get a smoother texture for the frosting, I’m not sure if it’s my technique or if that’s just how it’s supposed to be. It kind of has a light sugary crunch like undissolved granulated sugar even though I’m using confectioners swerve.

  17. 5 stars
    Oops, just left this comment for the wrong recipe!

    This cake is really good.- soft, moist, chocolaty. I made the from scratch version. It will be my sole go to chocolate cake recipe from now on. Also could be good as a brownie with the addition of chocolate chips. The frosting hardens just enough that it is like a layer of fudge.

    Pre-keto I had a recipe for peanut butter sheet cake with pour over peanut frosting. What do you think of substituting all of the cocoa powder with peanut powder?

  18. 5 stars
    Excellent and easy to make. Froze cut up squares and they were just as delicious. My husband loved and you can’t tell it’s sugar free.
    Would love a recipe to make sugar free cake with maple frosting that can be pores over the cake like this one

  19. 5 stars
    This turned out great, and even my sugar-loving husband liked it! I used the swerve box mix that I bought to try out, but I’ll definitely try again using the homemade cake version. Thank for a great recipe!

    1. 5 stars
      This was absolutely delicious! I couldn’t believe how close it was to the texas sheet cake I used to eat before going low carb. It was also fun to watch the frosting dry so fast. 🙂 I made the cake from scratch and so happy with the result! Thank you.

  20. I would like to add ground espresso to this. How much would I add and do I have to add a little more liquid if I do?

  21. Why do you only cook the Swerve Cake mix cake for only 15 minutes when it regularly cooks for 25-30. I see you pour the chocolate frosting on it, does that help cook the middle of cake more?

  22. Under the instructions to make the cake from scratch, #5 says Add coffee and milk. Is this a typo? I don’t see it in the ingredients list and I haven’t seen coffee used in making TX sheet cake before. Thank you.

  23. 5 stars
    My family LOVED this chocolate cake. I substituted coconut cream for the whipping cream and it turned out just fine(my husband has dairy allergies). The cake was moist and delicious. Hard to believe it was Keto. I will definitely make it again. I was wondering if you had a break down of the calories, protein, etc.?

  24. Could you post the nutritional information for this recipe? I am diabetic and trying to avoid carbs as much as possible. Thank you so much for your amazing recipes!

  25. Thank you for this recipe & yummy-looking photo. Oh, what s fantastic looking cake! Soon as I decide whether to purchase the mix or take a stab at your recipe version, I’ll bake it up. Your frosting recipe alone has gotten me exited! 👏🏼 😋

  26. I am just making this frosting recipe but I’m confused it asks for half a cup of unsalted butter and then later down in the recipe it says to mix the vanilla and salt and there’s no salt in the recipe. Can this be made with half a cup of salted butter ? I use Kerrygold

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