Easy Keto Lemon Cake (Instant Pot Recipe)

Dessert

March 10, 2026

Craving a dessert that’s bursting with bright, zesty flavor but won’t derail your health goals? Look no further! This Instant Pot Keto Lemon Cake is a game-changer. It’s incredibly moist, packed with tangy lemon goodness, and topped with a stunning sugar-free berry syrup. Using the Instant Pot guarantees a perfectly steamed, tender cake every single time, taking all the guesswork out of gluten-free baking. Get ready to impress yourself (and your guests!) with this simple, elegant, and utterly delicious low-carb treat.

Ingredients

• For the Keto Lemon Cake
• 3 cups / 336g almond flour
• 3 tbsp / 27g stevia powder
• ¼ cup / 60ml full-fat coconut milk
• 1 tbsp / 15ml coconut cream
• ¼ cup / 57g butter, softened
• 5 large eggs
• ¼ tsp / 1.5g salt
• 3 tsp / 12g baking powder
• 2 tsp / 10ml lemon extract
• For the Sugar-Free Berry Syrup
• ¼ cup / 30g raspberries
• ¼ cup / 37g blueberries
• 1 tbsp / 15ml fresh lemon juice
• ¼ cup / 48g granulated stevia
• 1 tsp agar powder

Instructions

1. Directions
2. In a large mixing bowl, whisk together the almond flour, stevia powder, baking powder, and salt to combine the dry .
3. Add the eggs one at a time, mixing well after each addition. Then, add the coconut milk, coconut cream, softened butter, and lemon extract. Using a hand mixer or a stand mixer with a paddle attachment, beat on medium speed for 3 minutes until the batter is smooth and well-combined.
4. Grease a 7-inch round cake pan and line the bottom with parchment paper. Pour the batter into the prepared pan and smooth the top. Tightly wrap the top of the pan with aluminum foil to prevent condensation from getting in.
5. Place the metal trivet inside your Instant Pot’s inner pot. Carefully set the covered cake pan on top of the trivet and pour 1 cup of water into the bottom of the inner pot.
6. Secure the Instant Pot lid and turn the steam release handle to the ‘Sealing’ position. Select the ‘Manual’ or ‘Pressure Cook’ setting and cook on high pressure for 25 minutes.
7. Once the cooking cycle is complete, perform a quick pressure release by carefully turning the handle to the ‘Venting’ position. Once the pin drops, open the lid and gently lift the cake pan out. Remove the foil and let the cake cool.
8. While the cake cools, prepare the syrup. Press the ‘Sauté’ button on the Instant Pot (after cleaning the inner pot). Add the raspberries, blueberries, 1 cup of water, and granulated stevia. Bring to a gentle simmer.
9. Cook for 5-6 minutes, stirring occasionally and gently mashing the berries with your spoon to release their juices.
10. Sprinkle the agar powder over the berry mixture and stir vigorously to combine. Continue to cook for another 1-2 minutes until the syrup begins to thicken.
11. Pour the warm berry syrup over the cooled cake. Refrigerate for at least 2 hours to allow the syrup to set and the flavors to meld before slicing and serving.

Nutritional Information

• Per Serving: Calories 186 | Total Fats: 16g | Net Carbs: 3.8g | Protein: 6.4g | Fiber: 1.3g

Pro Tips

• Ensure the aluminum foil is wrapped very tightly around your cake pan. This creates a seal that prevents condensation from the Instant Pot lid from dripping onto your cake and making it soggy.
• After cooking, insert a toothpick into the center of the cake. If it comes out clean or with a few moist crumbs, it’s done. If it’s still wet, reseal and cook for another 3-5 minutes.
• Feel free to swap the raspberries and blueberries for other keto-friendly berries like chopped strawberries or blackberries. You can also use a frozen berry mix; just thaw it first.
• Don’t skip the final refrigeration step! Chilling is crucial for allowing the cake to firm up and the agar-based syrup to set properly, which makes it much easier to slice and serve.

FAQ

Q: Can I use a different flour instead of almond flour
A: This recipe is specifically developed for the texture and properties of almond flour to keep it low-carb and gluten-free. Substituting with other flours like coconut flour would significantly alter the batter’s consistency and is not recommended without major adjustments.

Q: What if I don’t have an Instant Pot
A: This lemon cake is designed to be steamed in an Instant Pot, which creates its signature moist texture. Baking it in a conventional oven would require different timing and temperature and may result in a drier cake.

Q: My cake came out soggy what went wrong
A: A soggy cake is typically caused by condensation dripping onto it during cooking. To prevent this, the recipe stresses the importance of wrapping the top of your cake pan very tightly with aluminum foil to create a protective seal.

Q: Can I use different berries for the syrup
A: Absolutely! Feel free to swap the raspberries and blueberries for other keto-friendly berries like chopped strawberries or blackberries. You can also use a frozen berry mix, just be sure to thaw it before using.

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