Introduce the eggs, corn flour and Fantasy Cake mix into a mixer and whisk at medium speed for 3-4 minutes. Incorporate the margarine and whisk for around another 5 minutes. Pour the mix into the pre-greased mould until three-quarters full. Bake in a fan-assisted oven at 155-160°C or in a static oven at 175-180°C for around 30 minutes.