Juicy Yogurt Gugelhupf

Preheat the oven to 180 °C (top/bottom heat). Thoroughly grease a Gugelhupf pan with a little oil and dust with ground hazelnuts.

Beat eggs with sugar and vanilla sugar in a bowl for several minutes until the mixture is light and thick.

Slowly pour in the oil while stirring. Then stir in the natural yogurt and lemon zest.