The BEST Lemon Bars Recipe
The BEST Lemon Bars Recipe is a easy American recipe that serves 15. 420 calories per serving. Recipe by Preppy Kitchen on YouTube.
Prep: 40 min | Cook: 47 min | Total: 1 hr 42 min
Cost: $6.22 total, $0.41 per serving
Ingredients
- 3 cups All-Purpose Flour (for shortbread crust, sifted)
- 0.75 cup Powdered Sugar (for shortbread crust)
- 0.5 teaspoon Salt (fine sea salt)
- 200 g Unsalted Butter (melted, room temperature)
- 1 teaspoon Vanilla Extract (optional, adds flavor)
- 3 cups Granulated Sugar (for lemon curd)
- 3 tablespoons Lemon Zest (zest of about 3 lemons)
- 0.5 cup All-Purpose Flour (thickening agent for curd)
- 1 cup Fresh Lemon Juice (from about 4–5 lemons, no seeds)
- 8 Large Eggs (room temperature, shells removed)
- 0.25 cup Powdered Sugar (for dusting the finished bars)
Instructions
Preheat Oven
Set the oven to 350°F (175°C) and let it preheat while you prepare the crust.
Time: PT10M
Temperature: 350°F
Combine Dry Crust Ingredients
In a large mixing bowl, whisk together 3 cups all‑purpose flour, 3/4 cup powdered sugar, and 1/2 teaspoon salt until evenly blended.
Time: PT5M
Add Melted Butter
Melt 200 g unsalted butter (3 ¼ cups) and pour it into the dry mixture. Add 1 teaspoon vanilla extract if desired, then stir with a spatula until a crumbly dough forms.
Time: PT5M
Press Crust into Pan
Line a 9×13‑inch baking dish with parchment paper. Sprinkle the dough into the pan, break into crumbs, and press evenly with clean hands or a flat‑bottomed glass, ensuring no gaps or cracks.
Time: PT5M
Bake Shortbread Crust
Place the pan in the preheated oven and bake for 22 minutes, or until the edges are a light golden color.
Time: PT22M
Temperature: 350°F
Zest and Sugar Rub
While the crust bakes, add 3 tablespoons lemon zest to 3 cups granulated sugar in the food processor. Pulse until the mixture turns light yellow and feels like wet sand.
Time: PT5M
Juice Lemons
Zest the lemons first, then juice them to obtain exactly 1 cup of fresh lemon juice, straining out any seeds.
Time: PT5M
Add Flour to Sugar Mixture
Transfer the lemon‑sugar blend to a large bowl, sprinkle in 1/2 cup all‑purpose flour, and whisk until fully incorporated.
Time: PT3M
Incorporate Juice and Eggs
Add the 1 cup lemon juice and 8 room‑temperature eggs (cracked into a separate bowl) to the mixture. Whisk vigorously until smooth and uniform.
Time: PT4M
Combine Filling with Hot Crust
Remove the baked crust from the oven, give the filling a quick stir, then pour it over the hot crust, spreading evenly.
Time: PT2M
Bake Lemon Bars
Return the pan to the oven and bake for 25 minutes, turning the pan halfway through. The bars are done when the center has only a slight jiggle.
Time: PT25M
Temperature: 350°F
Cool and Chill
Allow the bars to cool in the pan for about 1 hour, then refrigerate for at least 2 hours before cutting.
Time: PT0M
Dust and Cut
Lift the parchment paper, dust the top with sifted powdered sugar, and cut into 15 squares using a dampened knife, wiping the blade between cuts.
Time: PT10M
Nutrition Facts
- Calories
- 420
- Protein
- 3g
- Carbohydrates
- 74g
- Fat
- 15g
- Fiber
- 2g
Dietary info: Vegetarian, Contains gluten, Contains dairy
Allergens: Wheat, Eggs, Dairy
Last updated: April 18, 2026






