Grease the muffin pan (with holes) with oil. In a large bowl mix: corn flour, white flour, sugar, baking powder and salt. In a smaller bowl beat the eggs with fork. Add corn, butter and milk and mash everything nicely. Add the mixture to the flour mixture and stir well. The mixture is poured into the muffin pan. Bake in a preheated oven at a 180-200ºC, about 20-30 minutes.