Traditionally these "Poffertjes" are a sweet treat, served warm with butter and powdered sugar. But these days you can make them savory as well. Pour a little batter in the pan, sprinkle cheese and top it with more batter. Use less or no sugar in the recipe and omit the cinnamon and vanilla powder.
In a small bowl sprinkle the yeast and add the milk. Stir and put the bowl aside for 10 minutes.
In a big bowl mix the flour, salt and sugar together. Add the yeast-milk mix and egg. Mix well, cover with plastic or a towel and set aside for 1 hour. Mix the vanilla and cinnamon in.
Heat the "poffertjes pan" on medium heat. Brush each of the cavities with oil or melted butter. Pour the batter in a squeeze bottle. This is an easy way to pour the batter into the cavities.
Squeeze some batter in the cavities and turn the "poffertjes" over with a tooth pick or chopstick when the top has dried a little.
Bake them for a few seconds more.
Serve warm with butter and powdered sugar or any other topping!