This recipe is a show-stopping version of the classic lemon poppy seed cake, as it is filled with a tangy lemon curd. The cake is made with a combination of all-purpose flour and almond flour, which gives it a tender crumb. The lemon flavor comes from fresh lemon juice and zest, and the poppy seeds add a satisfying crunch. The cake is filled with a homemade lemon curd, which is made with fresh lemon juice, sugar, eggs, and butter. The cake is finished with a simple glaze made from powdered sugar and lemon juice. This cake is perfect for a special occasion or a holiday dessert.