Gluten-Free Keto Almond Flour Lemon Bars

Prep: 15 minCook: 28 min16 barsmediumAmerican
Keto Almond Flour Lemon Bars with Monk Fruit Sweetener

Bright, tangy keto-friendly lemon bars featuring a buttery almond flour crust and silky lemon curd filling sweetened with monk fruit. The ghee-enriched base provides rich flavor while keeping carbs minimal. Perfect for low-carb dieters craving classic dessert flavors without the sugar crash. These bars deliver authentic lemon bar taste with a tender, shortbread-like texture that satisfies traditional dessert expectations.

Ingredients

Yield: 16 bars
  • 2 ½ cups blanched almond flour
    coconut flour4:1 ratioketo

    denser texture

    Full guide →
  • ¼ teaspoon monk fruit sweetener
    erythritol1:1keto

    may crystallize slightly

  • ¼ teaspoon sea salt
  • 1 large whole egg
  • ¼ cup ghee, melted
    butter1:1keto

    similar richness

    Full guide →
  • 2 teaspoons vanilla extract
  • 4 large whole eggs
  • 1 large egg yolk
  • ½ cup fresh lemon juice
  • 1 tablespoon lemon zest
  • 1 teaspoon monk fruit sweetener
    erythritol1:1keto

    may crystallize slightly

Instructions

  1. 1

    Preheat oven and line square baking pan with parchment paper

  2. 2

    Combine almond flour, monk fruit, and salt in medium bowl

  3. 3

    Whisk together egg, melted ghee, and vanilla in small bowl

  4. 4

    Pour wet ingredients into dry and whip with fork until moist dough forms

  5. 5

    Press dough into prepared pan with fingertips

  6. 6

    Poke holes in dough with fork and bake for 10 minutes

  7. 7

    Whisk all lemon layer ingredients in medium bowl until combined

  8. 8

    Remove crust from oven and reduce temperature

  9. 9

    Pour lemon filling over hot crust and return to oven

  10. 10

    Bake until center is set

  11. 11

    Cool at room temperature for 30 minutes

  12. 12

    Chill in refrigerator for 2 hours before slicing into bars

Tips

Tip 1

Poke holes in the crust to prevent puffing and ensure even baking of the bottom layer.

Tip 2

Pour filling over hot crust to help it set properly and create clean layers.

Tip 3

Chill thoroughly before cutting to achieve clean, professional-looking bar slices.

Good to Know

Storage

Refrigerate covered for up to 5 days

Make Ahead

Can be made 2 days in advance, store covered in refrigerator

Serve With

Serve chilled, cut into clean squares

Common Mistakes

Watch

Don't skip poking holes in crust to avoid puffed, uneven base

Watch

Pour filling over hot crust to prevent separation between layers

Watch

Allow full chilling time to avoid crumbly, difficult-to-cut bars

Substitutions

ghee
butter1:1keto

similar richness

Full guide →
monk fruit
erythritol1:1keto

may crystallize slightly

Full guide →
almond flour
coconut flour4:1 ratioketo

denser texture

Full guide →
Find more substitutions →

FAQ

Can I use regular sugar instead of monk fruit?

Yes, but it won't be keto-friendly. Use same amount of powdered sugar for best texture in the filling.

How long do these bars keep in the refrigerator?

Properly stored covered, they stay fresh for up to 5 days. The texture is best within first 3 days.

Can I freeze these lemon bars?

Yes, wrap individually and freeze up to 3 months. Thaw in refrigerator before serving for best texture.