There is no hiding what’s inside these sandwich cookies—the filling is showcased through a center window. Jam or preserves can be used in place of the lemon curd.
With the dough rectangles still on the work surface, and working with half of the rectangles, use a small cookie cutter in a desired shape (such as a diamond) or a sharp paring knife to cut out a smaller shape in the center of half of the rectangles to create a window. Use a metal spatula to transfer the cookies to the