Beat the butter and sugar until frothy. Gradually add the egg yolks and whisk well with the butter mixture. Sieve the flour, baking powder and salt and slowly add to the butter mixture with the orange juice. Beat the egg whites and fold under.
Put the finished dough in a greased bundt pan (24-26 cm diameter) and bake at 180 ° C in a preheated oven for 55-60 minutes.
Take the Gugelhupf out of the oven, let it cool down for 10 minutes and decorate with icing, syrup or couverture if you like.