Preheat oven to 350 degrees. Line a 9x13 baking pan with foil. Lightly grease the foil.
In a food processor, pulse the flour, confectioner's sugar and butter until ingredients are combined and the butter is pea sized.
Pour the dough into the prepared pan and press it into the bottom of the pan. Bake until lightly browned, about 15-17 minutes.
Remove from oven and pour the blueberry lemon curd in an even layer across the top of the crust. Bake for an additional 15-20 minutes or until the filling is set.
Remove from oven and allow to cool completely. When cool, sprinkle the top with additional confectioner's sugar. Then cut into bars.