Bright, tangy strawberry lemonade bars with a buttery shortbread crust and a fresh strawberry-lemon filling, finished with a dusting of powdered sugar.
1. Preheat the oven to 350°F (175°C). Line a 9 x 13-inch pan with foil or parchment paper and spray with cooking spray.
2. In a medium bowl, beat the butter and sugar together until fluffy. Add the flour and salt and mix until a crumbly dough forms.
3. Press the mixture evenly into the prepared pan. Bake for 15 minutes, or until lightly golden around the edges.
4. While the crust bakes, combine the lemon juice, lemon zest, strawberries, and sugar in a blender or food processor and blend until smooth.
5. Add the eggs and blend again until smooth. Add the flour, baking powder, and salt, and blend until fully combined.
6. Pour the filling over the hot crust and return the pan to the oven. Bake for 22–25 minutes, or until the top looks set and lightly golden.
7. Remove from the oven and let cool completely. Dust with powdered sugar before slicing and serving.
For clean slices, chill the bars before cutting.
Store leftovers covered in the refrigerator for up to 4 days.
Fresh lemon juice is recommended for the best flavor.