Insert the butterfly whisk. Add eggs, sugar, and vanilla sugar to the mixing bowl and whisk for 5 min./speed 4 until foamy.
In the meantime, grease the mold with butter and sprinkle with sugar. Preheat oven to 180 °C top and bottom heat (convection oven 160 °C).
Add the eggnog and oil to the mixing bowl and mix for 30 sec./speed 4. Remove the butterfly whisk.
Mix the flour with the cornflour and baking powder, add to the mixing bowl and blend in for 20 sec./speed 4.
Pour the dough into the mold and bake on the middle shelf of the oven for 45 - 50 minutes. If the cake gets too dark, cover with aluminum foil or baking paper. Before taking out, check with sticks.