Creating Gluten-Free Lemon Bars is a straightforward process. Just follow these steps to achieve perfection:

1. Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking dish with cooking spray.
2. Make the crust: In a mixing bowl, combine 1 cup of gluten-free flour, 1/2 cup of granulated sugar, and 1/4 cup of softened butter. Mix until crumbly.
3. Press into the baking dish: Evenly spread the crust mixture into the bottom of the greased baking dish. Use a spatula to create a smooth, even layer.
4. Bake the crust: Place the crust in the preheated oven and bake for 15-18 minutes, until it is slightly golden.
5. Prepare the filling: In another bowl, whisk together the 2 large eggs, 1 cup of granulated sugar, lemon zest, lemon juice, baking powder, and salt until well combined.
6. Pour the filling over the crust: Remove the crust from the oven and pour the lemon filling mixture over the baked crust.
7. Bake again: Return the baking dish to the oven and continue baking for an additional 20-25 minutes or until the filling is set.
8. Cool completely: Once done, allow the bars to cool at room temperature. For best results, refrigerate them for 1-2 hours.
9. Dust with powdered sugar: Before serving, sprinkle the top with powdered sugar for an extra touch of sweetness.

These step-by-step instructions will guide you effortlessly through the process of making these amazing lemon bars, resulting in a treat that is sure to impress!