There’s something magical about the aroma of warming spices filling the kitchen, and this cake delivers that cozy feeling in spades. Inspired by a traditional Czech gingerbread-style cake called *pernik*, this recipe has a secret weapon: the slow cooker. While typically oven-baked, I’ve found that the gentle, consistent heat of a slow cooker transforms this cake, giving it an unbelievably moist and tender texture that’s simply irresistible. The complex blend of eleven spices creates a flavor profile that is deeply aromatic, comforting, and utterly unique. Get ready to fall in love with your new favorite way to bake!
Ingredients
• PERNIK SPICE MIX
• 2 tablespoons / 16 g / 0.6 oz ground cinnamon
• 1 tablespoon / 5 g / 0.2 oz ground ginger
• 1 1/2 teaspoons ground cloves
• 1 1/2 teaspoons ground allspice
• 1 teaspoon ground coriander
• 1/2 teaspoon star anise powder
• 1/2 teaspoon vanilla powder
• 1/4 teaspoon ground cardamom
• 1/4 teaspoon ground nutmeg
• 1/4 teaspoon fennel seeds
• 1/8 teaspoon cayenne pepper
• CAKE
• 1 cup / 120 g / 4.2 oz coconut flour
• 1 1/4 cups / 100 g / 3.5 oz ground walnuts, pecans, or sunflower seeds
• 3/4 cup / 150 g / 5.3 oz granulated erythritol or Swerve
• 1/2 cup / 43 g / 1.5 oz cacao powder
• 1 tablespoon / 7 g / 0.3 oz gelatin powder
• 1 tablespoon / 12 g / 0.4 oz gluten-free baking powder
• 1 tablespoon plus 1 teaspoon / 13 g / 0.5 oz pernik spice mix
• 1 cup / 240 ml coconut milk, at room temperature
• 1/2 cup / 114 g / 4 oz butter or coconut oil, melted
• 6 large eggs, at room temperature
• 1 tablespoon / 6 g / 0.2 oz freshly grated lemon or orange zest, or 1 teaspoon sugar-free lemon or orange extract
• Optional: few drops of liquid stevia
• TOPPING
• 3.5 ounces / 100 g dark chocolate, minimum 85% cacao
• 1/2 teaspoon pernik spice mix
• 1/4 cup plus 2 tablespoons / 90 ml coconut milk or heavy whipping cream
• 3 tablespoons / 43 g / 1.5 oz butter or coconut oil
• 1 cup / 75 g / 2.7 oz unsweetened shredded coconut
Instructions
1. First, prepare the Pernik Spice Mix by combining all its in a small bowl. Set aside. (You will have extra; store it in an airtight container for future use!)
2. Line your slow cooker with a large piece of heavy-duty parchment paper, leaving a few inches of overhang on two sides to act as handles later. Set the cooker to LOW.
3. In a large bowl, whisk together all the dry cake : coconut flour, ground walnuts, erythritol, cacao powder, gelatin, baking powder, and 1 tablespoon plus 1 teaspoon of the prepared spice mix.
4. In a separate bowl or stand mixer, beat the room-temperature coconut milk, melted butter, eggs, and lemon zest until smooth. If using, add the stevia drops.
5. Gradually add the dry ingredient mixture to the wet , mixing on low speed until just combined. Do not overmix.
6. Pour the batter into the prepared slow cooker and use a spatula to spread it into an even layer. Cover with the lid and cook on LOW for 2 to 3 hours, or until a toothpick inserted into the center comes out clean.
7. Once cooked, turn off the slow cooker, remove the lid, and let the cake cool completely in the pot for several hours. This prevents it from breaking.
8. To make the topping, break the chocolate into a heatproof bowl and add the 1/2 teaspoon of spice mix. Gently heat the coconut milk and butter in a small saucepan until hot but not boiling. Pour the hot cream mixture over the chocolate and let it sit for 2 minutes, then stir until smooth and glossy.
9. Pour the chocolate topping over the cooled cake, spreading it evenly. Sprinkle with the shredded coconut. Let the topping set for 1 to 2 hours.
10. Using the parchment paper handles, carefully lift the cake out of the slow cooker. Slice and serve. Store leftovers in an airtight container in the refrigerator for up to 5 days.
Nutritional Information
• Per serving (makes 13)
• Total Carbs: 11.5 g
• Fiber: 5.3 g
• Net Carbs: 6.2 g
• Protein: 9.4 g
• Fat: 28.2 g
• Energy: 325 kcal
• Macronutrient Ratio: 8% Carbs, 12% Protein, 80% Fat
Pro Tips
• To prevent a soggy cake top, place a clean, folded tea towel or a layer of paper towels under the slow cooker lid. This will absorb the steam and condensation during cooking.
• For the best texture, ensure your eggs and coconut milk are at room temperature before mixing. This helps the batter emulsify properly and bake evenly.
• Create a parchment paper ‘sling’ for easy removal. Let the parchment hang over two opposite sides of the slow cooker insert, creating handles you can use to lift the entire cake out once it’s cooled.
• Make a double batch of the Pernik spice mix! It’s wonderful in coffee, sprinkled on yogurt, or used in other keto baked goods. Store it in an airtight jar for up to a year.
FAQ
Q: What is Pernik cake
A: Pernik is a traditional Czech gingerbread-style cake known for its rich and complex blend of aromatic spices. This recipe adapts the classic flavors for a slow cooker, resulting in an incredibly moist and tender low-carb, gluten-free cake.
Q: How do I stop my slow cooker cake from getting soggy
A: To prevent a soggy cake, you can absorb the condensation that builds up during cooking. Simply place a clean, folded tea towel or a double layer of paper towels under the slow cooker lid before you start cooking. This will trap the steam and ensure a perfectly moist, not wet, cake top.
Q: Can I bake this cake in the oven instead
A: While this recipe is specifically designed for the gentle, consistent heat of a slow cooker to achieve its unique moist texture, you could adapt it for an oven. We recommend baking at 350°F (175°C) for 30-40 minutes, or until a toothpick comes out clean. However, the slow cooker method is highly recommended for the best results.
Q: Is this Pernik cake recipe keto-friendly
A: Yes, this Slow Cooker Pernik Cake is completely keto-friendly. It uses coconut flour, a sugar substitute like erythritol, and has only 6.2 grams of net carbs per serving, making it a perfect low-carb dessert.





