Mix corn flour, wheat flour and baking powder. Beat the eggs separately with sugar and salt. Melt the butter, let it cool down a bit and gradually add it to the flour mixture along with the milk and the egg-sugar mixture and stir.
Grease a loaf pan, pour in the dough and cut lengthways with a knife.
Bake in the preheated oven at 180 ° C on the middle rack for 50-60 minutes until golden yellow.
The finished, still lukewarm bread tastes good with heavily salted butter.