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a chocolate sugar free birthday cake topped with chocolate ganache
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Low Carb Sugar Free Chocolate Birthday Cake

Need a sugar free birthday cake for someone who is on keto or diabetic? Or do you simply LOVE chocolate cake? This chocolate ganache layer cake is the perfect celebration cake for chocolate lovers. The amazing thing is that you make the cake in a BLENDER - there's only 10 minutes prep!
Course Dessert
Cuisine British
Prep Time 10 minutes
Cook Time 35 minutes
Cooling Time 15 minutes
Total Time 1 hour
Servings 16
Calories 302kcal

Ingredients

Chocolate Sponge

Chocolate Ganache

Instructions

Chocolate Sponge

  • Preheat the oven to 180C / 350 Fahrenheit. Generously grease two 21 x 4 cm round non-stick baking tins with butter.
  • Add all ingredients to blender, starting with the wet, and blend until smooth. You may need to scrape the sides a couple of times and blitz again.
  • Spoon the mix into your greased baking tins and bake for about 35 minutes or until you can insert and remove a skewer without any crumbs sticking. Do not over bake as it will firm up as it cools.
  • Allow to fully cool.

Ganache

  • Place the cream in a pan on med/ low and heat until hot, just as it starts to simmer. Do not boil. Turn off the heat.
  • Chop the chocolate quite fine. Add to the hot cream. Do not stir. Let the mixture sit for 5 minutes. Stirring will cool down the mix too quickly and may result in splitting.
  • Stir with a spatula until melted. If your ganache splits, don’t panic, just put in a food processor and blend until smooth and it will right itself. Allow to cool for a couple of minutes so not boiling but still easily spreadable.

Assembly

  • Spread the ganache on the top of both cakes. Allow to set and then stack the cakes one on top of the other.

Notes

Makes 16 servings. Net carbs: 5.5g per slice. 
Optional topping:  melt 2 squares of dark chocolate and spread on a marble slab. Allow to cool and use a scraper to make chocolate scrapes for decoration, or simply grate if you prefer.
Add the wet ingredients to the blender first so all the dry ingredients do not get stuck at the bottom. 
If your ganache splits, don't panic! Just put it in a food processor and blend until smooth and it will right itself. 
You can make half the recipe if you don't want a huge cake and just use 1 springform. In this case, use 4 medium eggs. 
Store in the fridge for up to 4 days or in the freezer for up to 3 months. 

Nutrition

Calories: 302kcal | Total Carbohydrates: 13.1g | Protein: 9.3g | Fat: 26.1g | Saturated Fat: 11.3g | Fiber: 7.6g | Sugar: 1.7g