What is "Madeira cake"?

Madeira cake is a classic and beloved type of sponge cake that is popular in many countries around the world. It is a dense and buttery cake that has a slightly lemony flavor, which comes from the addition of lemon zest to the batter. Madeira cake is typically made from a mixture of flour, butter, sugar, eggs, and baking powder, which gives the cake its signature texture and flavor. The cake is often baked in a loaf pan and can be served plain, with a light dusting of powdered sugar, or with a simple glaze or frosting. Madeira cake is a popular dessert for special occasions, such as tea parties or weddings, and can be found in bakeries, coffee shops, and supermarkets.