This lemon meringue cake recipe is a showstopper. It's made with layers of lemon cake and lemon curd, topped with a fluffy meringue. To make this cake, you will need flour, sugar, baking powder, salt, eggs, milk, vegetable oil, lemon zest, lemon juice, cornstarch, butter, and egg yolks. Mix the dry ingredients together, then add the wet ingredients and mix until smooth. Make the lemon curd by whisking together the lemon juice, cornstarch, butter, sugar, and egg yolks. Layer the cake and the lemon curd, then top with the meringue. Bake for 10-15 minutes until the meringue is golden brown. Let the cake cool before serving.