I got this recipe from my sister in law 20+ years ago, and since then have used it exclusively. These bars are not goopy, and have a perfect balance of sweet and tart. The crust is almost like a shortbread and is so delicate. During lemon season I make almost a pan a day and they disappear as quickly as I make them. You will not be disappointed. I use my food processor to do the work; you can use a traditional hand operated pastry blender for the crust and your blender for the filling