Mix eggs, sugar, and cardamom, vanilla together in a big bowl
Add in flour, baking powder, and salt
Mix these ingredients and beat in sour cream and melted butter until the batter is smooth
Let the batter sit for about 20 minutes before you begin making the waffles
Heat up the iron and brush some of the butter onto the surface
Pour ¼ cup of the batter in the iron and cook until the waffle is golden brown
Serve warm, topped with jam
