Preheat oven to 180 degrees C. Grease and flour a cake tin.
Pumpkin: Place the pumpkin on a baking tray with skin side down. Sprinkle with ginger, cinnamon and sugar. Bake in the preheated oven for 25 minutes, or until very tender.
Cake: Beat eggs and sugar in a bowl until a smooth creamy consistency.
Blend or process the pumpkin with oil to form a puree then add it to the egg mixture. Mix until you have integrated well.
Sift the dry ingredients of yeast, flour and corn flour. Slowly add to the mixture, stirring well.
Pour the mixture into the prepared cake tin and bake for 30-40 minutes or until knife inserted comes out clean. Remove from oven and let cool on a rack for 10 minutes before removing from the tin.