Keto lemon bars
A buttery almond shortbread under a sharp, tangy lemon layer, baked just until set. Cut into squares once cold, they have the clean snap of real lemon and the bakery look of the sugary original.
- Time
- 60 min (15 prep + 45 cook)
- Servings
- 9
- Per serving
- 181 kcal
- Protein
- 7 g
Ingredients
Shortbread
- 3/4 cup + 1 tbsp almond flour, fine, blanched
- 4 tbsp butter, melted
- 1 1/2 tbsp erythritol, powdered
- a pinch salt
Lemon layer
- 3 large eggs
- 2/3 cup + 1 tbsp erythritol, powdered
- 3/4 cup almond flour, fine, blanched
- 1/2 cup lemon juice, from about 3 lemons
- 1 tbsp lemon zest, from 2 lemons
Steps
- Heat the oven to 350°F and line a 8 inch square pan with parchment, leaving some overhanging. Stir the almond flour, melted butter, erythritol and salt together, press firmly into the pan and bake 15 minutes, until golden at the edges.
- Meanwhile, whisk the eggs and powdered erythritol until smooth, then whisk in the almond flour, lemon juice and zest. Let it stand 5 minutes so the flour takes up some of the juice.
- Pour over the hot crust and bake 22–25 minutes, until the center barely wobbles and reads 160°F.
- Cool in the pan for 30 minutes, then chill at least 2 hours before lifting out and cutting into 9 squares with a clean hot knife. Keeps 4 days in the fridge; freezes 3 months.
Good to know
Can I use bottled lemon juice?
Fresh is much better here, since the lemon is the whole point. Bottled juice works in a pinch, but keep the zest from a real lemon or the bars will taste flat.
Alternative
Per
- Calories
- 281
- Protein
- (11%)
- 10 g
- Fat
- (59%)
- 24 g
- Carbohydrates
- (29%)
- 28 g
- of which sugar
- 2 g
- Fiber
- 3 g
- Sodium
- 164 mg
More desserts
Computed from the ingredients with our published formula, not yet kitchen-tested. How
As written, 1630 kcal goes into the pot and 611 g of ingredients comes out as about 581 g of food: 281 kcal per 100 g. Cooking moves water and energy density is the score's biggest lever, so the dish is scored as cooked, not as an average of its parts. Every ingredient links to its food page, with the same data and score. The label's percentages are each macronutrient's share of the calories. The full formula.