1-Preheat and prepare the crust: Begin by preheating your oven to 350°F (175°C) and lining a 9×13 inch baking dish with parchment paper this simple step keeps things tidy and ensures your bars release effortlessly. Once your oven is ready, you’ll mix and bake the crust first for that golden, buttery foundation.

2-Mix the crust ingredients: For the crust, whisk together 2 ½ cups flour, 2/3 cup powdered sugar, and ½ teaspoon salt in a bowl, then stir in the melted butter (and optional vanilla) until it’s all combined. Press this dough evenly into your prepared pan and bake it for about 20 minutes until it’s lightly golden your kitchen will smell incredible! While the crust bakes, prepare the filling by processing the granulated sugar and lemon zest in a food processor until the zest is fully mixed in and the sugar turns a light yellow. If you don’t have a food processor, just mince the zest finely and mix it with the sugar by hand.

3-Prepare the filling and bake: Next, in a large bowl, combine that lemon-sugar mixture with the remaining ½ cup flour, then whisk in the lemon juice and eggs until everything is smooth and glossy this is where the magic happens for that zingy filling. Once the crust is out of the oven, pour the filling right on top while it’s still warm, and pop it back in for another 25 minutes. Remember to rotate the pan halfway through for an even bake; the filling might look a bit wobbly, but it will set as it cools.

4-Cool and chill the bars: After baking, let your lemon bars cool at room temperature for about an hour, then chill them in the fridge for at least 2 hours to fully set this step is crucial for those clean, perfect cuts. Once chilled, dust with extra powdered sugar if you like, and slice into bars using a sharp knife dipped in water wipe the knife between cuts for neat edges. For a fun variation, if you’re into other citrus treats, check out our Easy Mojito Recipe on the blog for a refreshing twist on flavors.