Ingredients:
For the Shortbread Base:
- 1 cup (2 sticks) unsalted butter, softened
- 1/2 cup powdered sugar
- 2 cups all-purpose flour
- 1/4 teaspoon salt
- Zest of 1 lime
For the Key Lime Filling:
- 1 cup granulated sugar
- 4 large eggs
- 2/3 cup fresh key lime juice (you can also use regular lime juice)
- 2 tablespoons all-purpose flour
- 1/2 teaspoon baking powder
- Powdered sugar for dusting (optional)
- Lime slices for garnish (optional)
Instructions:
1. Preheat the Oven:
- Preheat your oven to 350°F (175°C). Grease and line a 9×9-inch (23×23 cm) square baking pan with parchment paper, leaving an overhang on two sides for easy removal.
2. Make the Shortbread Base:
- In a mixing bowl, cream together the softened butter and powdered sugar until light and fluffy.
- Add the all-purpose flour, salt, and lime zest. Mix until just combined.
- Press the shortbread mixture evenly into the bottom of the prepared baking pan.
- Bake the shortbread in the preheated oven for about 15-20 minutes, or until it’s lightly golden brown around the edges. Remove it from the oven and let it cool slightly.