An exuberant twist ofmeringue nearly escapes the pull of gravityin this light confection. Its layers include crunchy meringue, smoothlemon curd, frothy whipped cream, andjuicy blackberries.
Preheat oven to 200 degrees, with racks in upper and lower thirds. Line two large rimmed baking sheets with parchment paper. Fit a pastry bag with an Ateco #22 star tip; fill with meringue. Pipe 12 to 16 long swirly shapes onto one of the prepared sheets. Gently spread remaining meringue 3/4 inch thick onto the other.
Bake 20 minutes. Reduce oven heat to 175 degrees; continue baking until meringue is dry but still white, 35 minutes more, rotating sheets halfway through. Transfer to a wire rack to cool completely. Set aside swirls; crumble meringue sheet.
Meanwhile, in a small bowl, combine creme fraiche and 1 cup lemon curd; refrigerate until ready to use.
To assemble parfaits, layer creme-fraiche mixture, crumbled meringue, and blackberries in serving glasses. Spoon some of the remaining 1/2 cup lemon curd into each glass. Top with whipped cream; garnish with meringue swirls. Serve immediately.