Cream together soft butter and sugar. Add vanilla sugar and cardamom, as well as eggs. Add flour little by little. The dough should have a consistency similar to waffle/pancake batter. Heat the ‘good advice’ iron (electric or cast iron) and place a dollop of dough with two teaspoons - depending on the desired size. The dough is thick and moist and should therefore be placed with two teaspoons. They need to be baked for about 2 minutes on each side.