Frequently Asked Questions
Is this cheesecake cake truly zero-carb?
No, it is not zero-carb. Almond flour, cream cheese, heavy cream, blueberries, and sweeteners all contain trace amounts of carbohydrates. However, each serving is very low in net carbs—typically around 4–6 grams depending on the portion size and the exact brands used. It’s an excellent keto-friendly dessert, but it does contain some carbs, primarily from the blueberries and almond flour.
Can I use a different nut flour for the crust?
Yes, you can substitute finely ground pecans or walnuts for the almond flour. The crust will be slightly more crumbly and have a stronger nutty flavor. If you use a different nut flour, make sure it’s finely ground to hold together. A pinch of cinnamon or a tablespoon of unsweetened shredded coconut can also be added to the crust for more depth.
What can I use instead of heavy cream in the filling?
The heavy cream is essential for the light, fluffy texture because it whips to stiff peaks. You can substitute full-fat coconut cream (the solid part from a chilled can of coconut milk) for a dairy-free version. Chill the can overnight, scoop out the thick cream, and whip it as you would heavy cream. The result will be slightly denser and have a subtle coconut flavor, which actually pairs beautifully with lemon and blueberry.
Why didn’t my cheesecake set firmly?
It likely needed more chilling time, or the heavy cream wasn’t whipped to stiff peaks. The filling sets purely from the fat in the cream cheese and heavy cream solidifying when cold, and from the air trapped in the whipped cream. If your fridge isn’t cold enough or you didn’t whip the cream enough, the cake will be softer. Adding the optional gelatin ensures a firmer set. Make sure to chill for at least 4 hours, and ideally overnight.
Can I use frozen blueberries?
Yes, but they must be thawed and drained extremely well before folding them in, as excess liquid will make the filling watery. Even then, they may bleed some color into the filling, which is fine—just be gentle. For the topping, use fresh blueberries for the best appearance.
Low-Carb Lemon Blueberry Cheesecake Cake
A flour-free, no-bake cheesecake cake with a buttery almond flour crust, a velvety lemon cheesecake filling studded with fresh blueberries, and a whipped cream topping. Bright, creamy, and perfect for any occasion.
Prep Time:
25 minutes
Chill Time:
4 hours (or freeze 1–2 hours)
Total Time:
4 hours 25 minutes
Servings:
8–10 slices
Ingredients
Crust:
- 1½ cups super-fine blanched almond flour
- 3 tablespoons unsalted butter, melted
- 2 tablespoons powdered keto sweetener
- ½ teaspoon vanilla extract
Cheesecake Filling:
- 16 oz full-fat cream cheese, softened
- 1 cup heavy whipping cream, cold
- ½ cup powdered keto sweetener (to taste)
- 1 teaspoon vanilla extract
- 2 tablespoons fresh lemon juice
- 1 tablespoon lemon zest
- ½ cup fresh blueberries (plus more for topping)
- Optional for firmer texture: 1 teaspoon unflavored gelatin + 2 tbsp warm water
Topping:
- Extra whipped cream
- Fresh blueberries
- Lemon zest or thin lemon slices
Instructions
- Make the crust: Combine almond flour, melted butter, sweetener, and vanilla. Press firmly into a lined 8-inch round pan or loaf pan. Chill while you make the filling.
- Beat the cream cheese: In a large bowl, beat softened cream cheese until smooth. Add powdered sweetener, vanilla, lemon juice, and lemon zest. Mix until creamy.
- Whip the cream: In a separate bowl, whip the cold heavy cream until stiff peaks form.
- Fold together: Gently fold the whipped cream into the cream cheese mixture until light and fluffy, with no white streaks.
- Fold in blueberries: Carefully fold in the fresh blueberries, distributing them without crushing.
- Assemble: Spread the filling over the chilled crust and smooth the top.
- Chill: Refrigerate for at least 4 hours, or freeze for 1–2 hours for a firmer cake.
- Decorate: Before serving, top with whipped cream, fresh blueberries, and lemon zest or slices. Slice and enjoy cold.
Notes
- Use powdered sweetener for the creamiest, non-gritty texture.
- For the lowest carb count, use fewer blueberries and skip the extra fruit topping.
- To ensure a firm, clean slice, add the optional gelatin or freeze for the firmer time.
- Store covered in the refrigerator for up to 4 days, or freeze without topping for up to 2 months.
This Low-Carb Lemon Blueberry Cheesecake Cake is a testament to the fact that eating low-carb never means giving up on the most luscious, celebratory desserts. With its creamy, tangy filling, bursts of fresh blueberry, and buttery almond crust, it’s a recipe you’ll return to again and again—for birthdays, summer evenings, or anytime you want a slice of pure, guilt-free joy.