This lovely rolled take on the classic lemon-poppy seed combo is an ideal sweet finish to any springtime meal. Airier than a typical lemon poppyseed cakes, which tend to be quite dense, this roulade with a light and creamy lemon filling. This is a good recipe for first time roulade makers, as we found that this sponge cake rolls very easily with no cracking. And once chilled, the roulade cuts cleanly with no problem. If you want to go beyond a light dusting of powdered sugar to finish, you could also top this dessert off with a simple lemon glaze and toasted, sliced almonds.