Top these citrus-infused Ruby Red Grapefruit Tarts with homemade sugary-sweet meringue. Ingredients: Crust 1 c. plus 2 Tbsp (2 1/4 sticks) unsalted butter, at room temperature 1/2 c. confectioners’ sugar Pinch kosher salt 1 tsp. pure vanilla extract 3 c. all-purpose flour Filling 1 c. plus 2 Tbsp granulated sugar 6 tbsp. all-purpose flour 3 […]