Homemade Keto Lemon Cheesecake

I thought keto meant giving up all my favorite desserts forever. That’s what I told myself for months while avoiding birthday parties and skipping dessert menus at restaurants.

Turns out I was totally wrong. This lemon cheesecake proves you can stick to your keto diet and still enjoy something sweet and creamy. The best part? It actually tastes better than regular cheesecake because the lemon flavor really shines through without all that extra sugar getting in the way.

What Kind of Cream Cheese Should I Use?

For the best keto lemon cheesecake, you’ll want to stick with full-fat cream cheese – and this recipe specifically calls for it. The Philadelphia brand is a reliable choice, but any full-fat cream cheese from your grocery store will work just fine. Make sure to let your cream cheese come to room temperature before you start mixing, as cold cream cheese will give you lumps and an uneven texture. You can speed up the softening process by cutting the cream cheese into smaller chunks and letting them sit out for about 30 minutes, or you can microwave them in 10-second intervals if you’re in a hurry.

Options for Substitutions

This keto cheesecake is pretty forgiving when it comes to swaps, though a few ingredients are non-negotiable:

• Full fat cream cheese: This is one ingredient you really shouldn’t substitute – the full fat content is what makes this cheesecake rich and keeps it keto-friendly. Low-fat versions will change the texture completely.
• Erythritol sweetener: You can swap this with other keto sweeteners like monk fruit sweetener or stevia, but use about 3/4 the amount since they’re often sweeter. Allulose works great too at a 1:1 ratio.
• Heavy whipping cream: Sour cream works as a substitute and adds a nice tangy flavor. You could also use full-fat Greek yogurt, though it might make the texture slightly denser.
• Fresh lemon juice and zest: Bottled lemon juice can work in a pinch, but fresh really makes a difference here. If you want to switch up the flavor, try lime or orange instead – just use the same amounts.
• Lemon almond shortbread crust: You can make a simple almond flour crust instead by mixing 2 cups almond flour, 1/4 cup melted butter, and 2 tablespoons sweetener. Press into your pan and bake for 10 minutes before adding the filling.

Watch Out for These Mistakes While Baking

The biggest mistake when making keto cheesecake is not having your cream cheese at proper room temperature, which leads to lumpy batter and an uneven texture – take it out of the fridge at least 2 hours before baking or soften it gently in the microwave for 10-15 seconds at a time.

Overmixing the batter once you add the eggs can incorporate too much air and cause cracks on the surface, so mix just until combined and scrape down the bowl frequently.

Since erythritol can sometimes leave a cooling aftertaste, taste your batter before baking and adjust with a pinch of stevia or monk fruit if needed, and always bake your cheesecake in a water bath to prevent cracking and ensure even cooking.

The most important tip is to let it cool completely at room temperature before refrigerating overnight – rushing this process will result in a cheesecake that’s not properly set.

What to Serve With Keto Lemon Cheesecake?

This rich and creamy cheesecake is pretty perfect on its own, but a handful of fresh berries like strawberries or blueberries makes a great pairing since they’re naturally low in carbs and add a nice pop of color. A dollop of sugar-free whipped cream is another nice touch if you want to make it extra indulgent. Since this dessert is already quite rich with all that cream cheese, I like serving it with some hot coffee or unsweetened tea to balance out the creaminess. For special occasions, you could even add a light dusting of powdered erythritol or a few mint leaves for a fancy presentation.

Storage Instructions

Refrigerate: This lemon cheesecake needs to chill in the fridge to set properly – at least 4 hours, but overnight is even better. Once it’s set, cover it with plastic wrap or store it in an airtight container and it’ll stay fresh for up to a week. The flavors actually get better after a day or two!

Freeze: You can absolutely freeze this cheesecake for up to 3 months. I like to slice it first and wrap individual pieces in plastic wrap, then pop them in a freezer bag. This way you can grab just one slice whenever you’re craving something sweet without thawing the whole thing.

Serve: For the best texture, let frozen slices thaw in the fridge for about 2-3 hours before serving. If you’re in a hurry, you can leave them at room temperature for about 30 minutes. The cheesecake tastes amazing straight from the fridge too – nice and creamy with that bright lemon flavor.

Preparation Time	20-30 minutes
Cooking Time	90-100 minutes
Total Time	110-130 minutes
Level of Difficulty	Medium

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 4100-4500
• Protein: 90-110 g
• Fat: 380-420 g
• Carbohydrates: 60-90 g

Ingredients

For the crust:

• 1 batch lemon almond shortbread dough

For the cheesecake filling:

• 1 tsp vanilla extract
• 1 tsp fresh lemon juice
• 1 1/4 cups granulated erythritol sweetener (I use Swerve brand)
• 4 large eggs
• 1/3 cup heavy cream (makes it extra creamy and rich)
• 1 tbsp grated lemon zest (freshly grated for best flavor)
• 4 packages (32 oz) full-fat cream cheese (room temperature, about 70°F for smooth mixing)

Step 1: Prepare and Pre-Bake the Crust

• 1 batch lemon almond shortbread dough

Preheat your oven to 350°F (175°C).

Take the lemon almond shortbread dough and firmly press it into the bottom and about 1 inch up the sides of a 10-inch springform pan to form an even crust.

Bake the crust for 10 minutes until it just begins to set, then remove it from the oven.

Reduce the oven temperature to 325°F (163°C) to prepare for the cheesecake.

Step 2: Blend the Cheesecake Filling

• 4 packages (32 oz) full-fat cream cheese, at room temperature
• 1 1/4 cups granulated erythritol sweetener
• 4 large eggs
• 1/3 cup heavy cream
• 1 tsp vanilla extract
• 1 tsp freshly squeezed lemon juice
• 1 tbsp grated lemon zest

In a blender, combine the room temperature cream cheese, granulated erythritol sweetener, eggs, heavy cream, vanilla extract, freshly squeezed lemon juice, and grated lemon zest.

Blend on high for about 2 minutes, or until the mixture is completely smooth with no lumps.

I like to scrape down the sides once during blending to make sure everything incorporates evenly.

Step 3: Fill and Bake the Cheesecake

• cheesecake filling (from Step 2)
• pre-baked crust (from Step 1)

Pour the blended cheesecake filling into the pre-baked crust in the springform pan, smoothing the top with a spatula.

Bake in the center of the oven at 325°F (163°C) for 80 minutes, or until the edges are set and the center is slightly jiggly.

I like to tap the pan gently to remove any air bubbles before baking.

Step 4: Cool the Cheesecake Gradually

Once the baking time is complete, turn off the oven and crack the door open about 10 inches.

Allow the cheesecake to cool in the oven for 1 hour.

This gradual cooling helps prevent cracks on top of the cheesecake.

Step 5: Chill and Serve

Remove the cheesecake from the oven and allow it to finish cooling at room temperature, then refrigerate until well chilled, preferably overnight.

Slice and serve chilled.

For an extra touch, top each serving with a dollop of whipped cream—it’s optional, but I always recommend it for even more indulgence!