Cream the room-warm soft butter with the sugar and add the eggs one by one. Now add the milk and the sifted flour mixed with baking powder. Finally, fold in a little salt.
Preheat the heart waffle iron for 10 minutes and add just under 2 tbsp of batter to each. Bake for about two minutes. Dust the finished waffles with powdered sugar or sprinkle with sugar and cinnamon. Serve with steaming coffee or tea.