Madeira cake is a classic British sponge cake known for its dense yet moist texture. This recipe adds a refreshing twist with the addition of lemon essence, giving the cake a zesty and citrusy flavor. The cake is made with simple ingredients like butter, sugar, eggs, flour, and baking powder. It is perfect for afternoon tea or as a dessert. Serve it plain or with a dusting of powdered sugar for an elegant finish.