Grease the pound cake pan and sprinkle it with flour. Beat the eggs in a large bowl and beat them with sugar until foamy, gradually add flour with baking powder, milk and oil.
Pour half of the mixture into the baking pan, color the other half of the dough with cocoa and pour over the light part of the dough. Bake in a moderately heated oven for about 40-45 minutes.
After it has cooled, sprinkle it with powdered sugar. Enjoy :)
