Creating delicious Creamy Lemon Squares is easy when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking dish or line it with parchment paper for easy removal.
2. Prepare the Crust: In a medium bowl, mix together the flour, granulated sugar, melted butter, and salt until combined. Press the mixture firmly into the bottom of the prepared dish to form an even layer.
3. Bake the Crust: Place the baking dish in the preheated oven and bake for 15-20 minutes, or until the edges are lightly golden. Remove from the oven and set aside to cool slightly.
4. Make the Filling: In a large bowl, whisk together the eggs and granulated sugar until smooth. Add the flour, lemon juice, lemon zest, and baking powder. Whisk until well combined and no lumps remain.
5. Pour the Filling: Pour the lemon filling over the slightly cooled crust, spreading it evenly.
6. Bake Again: Return the dish to the oven and bake for an additional 20-25 minutes. The filling should be set and slightly golden around the edges.
7. Cool: Remove from the oven and let it cool at room temperature for about 10 minutes. Then, transfer to the refrigerator to cool completely, about 1-2 hours.
8. Slice and Dust: Once cooled, use a sharp knife to cut into squares. Dust with powdered sugar before serving for an elegant touch.

By following these simple steps, you’ll create a batch of Creamy Lemon Squares that will impress everyone!