This pistachio and lemon cake is a refreshing and light dessert that's perfect for a summer dinner party. The cake is made with ground pistachios, flour, sugar, baking powder, salt, eggs, milk, oil, and lemon zest. The lemon zest adds a bright and tangy flavor to the cake, while the pistachios give it a nutty crunch. This cake is topped with a simple lemon glaze made with powdered sugar and lemon juice. Serve this cake with fresh berries and whipped cream for a delicious and elegant dessert.