Go Back

Keto Lemon Bars - Bright, Zesty, and Low-Carb

Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 16 servings
Ingredients Method

Ingredients
  

  • For the crust:
  • 1 1/2 cups fine almond flour
  • 1/4 cup powdered erythritol or allulose (or a monk fruit blend)
  • 1/4 teaspoon fine sea salt
  • 1/4 cup unsalted butter, melted (or coconut oil for dairy-free)
  • 1 teaspoon vanilla extract
  • For the lemon filling:
  • 3 large eggs
  • 1/2 cup powdered erythritol or allulose (adjust to taste)
  • 1/2 cup fresh lemon juice (about 3–4 lemons)
  • 1 tablespoon finely grated lemon zest
  • 3 tablespoons almond flour
  • 2 tablespoons melted unsalted butter (optional for a silkier texture)
  • 1/4 teaspoon sea salt
  • To finish:
  • Extra powdered sweetener for dusting (optional)
  • Lemon zest curls for garnish (optional)

Method
 

  1. Prep the pan and oven. Preheat your oven to 350°F (175°C). Line an 8x8-inch baking pan with parchment, leaving overhang for easy lifting.
  2. Mix the crust. In a bowl, stir together almond flour, powdered sweetener, and salt. Add melted butter and vanilla. Mix until the dough looks like damp sand and holds when pressed.
  3. Press and par-bake. Press the crust evenly into the pan, packing it down firmly. Bake for 10–12 minutes until lightly golden around the edges. Set aside to cool slightly.
  4. Whisk the filling. In a medium bowl, whisk eggs until smooth. Add powdered sweetener, lemon juice, zest, almond flour, melted butter (if using), and salt. Whisk until no lumps remain. Taste and adjust sweetness if needed.
  5. Pour and bake. Pour the lemon mixture over the warm crust. Bake for 16–20 minutes, until the center is just set and no longer jiggly. Don’t overbake or the top may crack.
  6. Cool and chill. Let the bars cool to room temperature in the pan. Then refrigerate for at least 2 hours to firm up for clean slices.
  7. Slice and serve. Use the parchment to lift the slab onto a board. Dust with powdered sweetener if you like, then slice into 16 squares. Garnish with zest curls for a bright finish.