Ingredients:
For the shortbread crust:
- 1 cup (2 sticks) unsalted butter, softened
- 1/2 cup powdered sugar
- 2 cups all-purpose flour
- 1/4 teaspoon salt
For the key lime filling:
- 4 large eggs
- 1 1/2 cups granulated sugar
- 1/2 cup key lime juice (freshly squeezed is best)
- 1/4 cup all-purpose flour
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
- Zest of 2 key limes (optional)
- Powdered sugar, for dusting (optional)
