Keto Black Forest Sheet Cake

Name: Keto Black Forest Sheet Cake
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: Keto
Ingredients: 3/4 cup (103.5 g) pitted fresh cherries, chopped; 1/2 cup (60 g) fresh raspberries; 1/4 cup (59.15 g) water; 1/3 cup (60.67 g) powdered Swerve Sweetener; 3/4 tsp cherry extract; 2 cups (210 g) almond flour; 2/3 cup (121.33 g) granulated Swerve Sweetener; 1/2 cup (43 g) cocoa powder; 1/3 cup (40 g) coconut flour; 1/3 cup (36 g) unflavored whey protein powder (can sub egg white powder); 1 tbsp baking powder; 1/2 tsp salt; 4 large eggs, room temperature; 1/2 cup (113.5 g) butter, melted; 1 tsp vanilla extract; 1/2 to 3/4 cup (118.29 g) water; 2 cups (476 g) heavy whipping cream; 1/2 cup (91 g) powdered Swerve Sweetener (for frosting); 1 1/2 tsp cherry extract (for frosting); 1/2 tsp vanilla extract (for frosting); Fresh cherries (for garnish); Sugar-free chocolate sprinkles (for garnish); Shaved dark chocolate (for garnish)

By:

Jennifer

Published:

June 13, 2025

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This Keto Black Forest Sheet Cake is a showstopper that you’ll want to have at every gathering! Imagine sinking your fork into a moist, rich chocolate cake layered with a tart cherry filling and topped with luscious whipped cream. Sounds like a dream, right? The good news is, you can enjoy this classic dessert without the carbs. By using almond and coconut flour along with low-carb sweeteners, you get a delightful treat that keeps your health goals in check.

Whether you’re celebrating a birthday, having a family gathering, or simply treating yourself, this cake will become a go-to recipe. It’s deceptively simple to make; with just a few steps, you’ll end up with a beautiful and delicious Keto Black Forest Sheet Cake. So, gather your ingredients, roll up your sleeves, and let’s bring this scrumptious cake to life!

Why This Recipe Works

This Keto Black Forest Sheet Cake delivers the indulgent flavors of the classic dessert without the guilt, making it perfect for those watching their carb intake. The use of almond flour and coconut flour provides a rich texture, while the combination of fresh cherries and raspberries creates a delightful tartness. The sweetener alternatives ensure you enjoy a satisfying dessert that aligns with your dietary goals.

Why You’ll Love This Keto Black Forest Sheet Cake

You’ll love this cake for its moist, flavorful layers and the rich contrast of cherries against the dark cocoa. Ideal for celebrations or just a simple family treat, it strikes a perfect balance between a healthy lifestyle and delicious indulgence. Plus, its easy preparation means you can enjoy baking without spending hours in the kitchen.

Ingredients

3/4 cup (103.5 g) pitted fresh cherries, chopped
1/2 cup (60 g) fresh raspberries
1/4 cup (59.15 g) water
1/3 cup (60.67 g) powdered Swerve Sweetener
3/4 tsp cherry extract
2 cups (210 g) almond flour
2/3 cup (121.33 g) granulated Swerve Sweetener
1/2 cup (43 g) cocoa powder
1/3 cup (40 g) coconut flour
1/3 cup (36 g) unflavored whey protein powder (can sub egg white powder)
1 tbsp baking powder
1/2 tsp salt
4 large eggs, room temperature
1/2 cup (113.5 g) butter, melted
1 tsp vanilla extract
1/2 to 3/4 cup (118.29 g) water
2 cups (476 g) heavy whipping cream
1/2 cup (91 g) powdered Swerve Sweetener (for frosting)
1 1/2 tsp cherry extract (for frosting)
1/2 tsp vanilla extract (for frosting)
Fresh cherries (for garnish)
Sugar-free chocolate sprinkles (for garnish)
Shaved dark chocolate (for garnish)

Preparing the Cherry Filling

To make the cherry filling, grab a medium saucepan and over medium heat, combine the chopped cherries, raspberries, and water. Bring this sweet mix to a boil, then reduce it to a simmer, cooking for about 4 minutes. You want the berries to soften up, making them easy to mash with a fork. Once you have that delicious mixture, remove it from the heat and stir in the powdered sweetener along with the cherry extract. Set this aside as it cools.

Making the Cake

Now, it’s time to make the cake itself! Preheat your oven to 325°F (163°C) and grab your 15 by 10 inch jelly roll pan. Grease it well and line the bottom with parchment paper, then grease the parchment for good measure. In a large bowl, whisk together the almond flour, granulated sweetener, cocoa powder, coconut flour, protein powder, baking powder, and salt.

Next, incorporate the eggs, melted butter, and vanilla extract until everything is well mixed. Gradually add just enough water, starting with 1/2 cup, until the batter is spreadable but still thick. If you find it too thick, you can adjust with more water, one tablespoon at a time. Once that’s done, spread the batter evenly in the pan, smoothing out the top. Bake it for 15 to 20 minutes, until the top feels firm when you touch it. Let it cool completely in the pan; once it’s cool, spread the cherry filling evenly on top.

Creating the Whipped Cream Frosting

For the whipped cream frosting, use a large bowl to combine the heavy cream, powdered sweetener, cherry extract, and vanilla extract. Beat this mix until you reach stiff peaks. Once you achieve that delightful consistency, spread about three-quarters of the whipped cream evenly over the cake. With the remaining whipped cream, get creative! Pipe some decorative rosettes on top for that extra touch.

Serving Suggestions

When serving this Keto Black Forest Sheet Cake, consider adding a dollop of whipped cream or topping it with fresh cherry halves for a more elegant presentation. It pairs beautifully with a cup of coffee or a refreshing herbal tea, making it perfect for an afternoon treat.

Tips for Success

Make sure all ingredients are at room temperature for easier mixing.
Don’t skip the parchment paper; it makes releasing the cake from the pan a breeze.
Adjust the sweetness to your liking. Taste the cherry filling before spreading it on the cake for just the right flavor.

Storage Tips

Do you have leftovers? No problem! Store them in an airtight container in the refrigerator for up to 5 days. If you want to keep some for longer, consider freezing individual slices. Just wrap them in plastic wrap and place them in a freezer bag.

Variations

Feel free to mix things up! You can try using different berries like blackberries or strawberries for a unique twist. If you’re looking for a nut-free option, simply substitute the coconut flour for more almond flour. Also, adding a splash of almond extract to the whipped cream can bring an extra flavor dimension that you’ll love.

FAQs

1. Can I make this Keto Black Forest Sheet Cake ahead of time?
Yes, you can prepare the cake a day in advance. Just store it in the fridge after you’ve put it all together.

2. How long does the whipped cream frosting last?
The whipped cream frosting can be kept in the refrigerator for up to 2 days. If it needs a little freshening up, just re-whip it before using.

3. Can I use frozen cherries?
Absolutely! Frozen cherries work great; just be sure they are thawed and drained before incorporating them into the recipe.

4. What can I use instead of Swerve sweetener?
You can use your favorite low-carb sweetener, but keep in mind that sweetness levels may vary.

5. Is this cake suitable for gluten-free diets?
Definitely! All the ingredients in this Keto Black Forest Sheet Cake are gluten-free, making it a safe choice.

This Keto Black Forest Sheet Cake is a delightful blend of flavors and textures, making it a perfect treat for anyone looking for a delicious low-carb dessert. The fresh fruit filling and creamy frosting come together harmoniously, providing a satisfying indulgence that aligns with keto-friendly goals. Whether for a special occasion or a random Tuesday evening, this cake is sure to impress and satisfy!