Melt the butter in a water bath.
Mix sifted flour, cinnamon and baking powder in a deep bowl.
In another deep bowl, mix the melted butter and sugar. Now add the egg, but make sure that the melted butter has cooled so that the egg doesn’t cook. Mix with a whisk
Mix the dry and wet ingredients together.
Knead the dough. Put in the fridge for at least 30 minutes.
Form balls with your hands and flatten them, dipping them in sugar
When all the cookies are ready, bake them for 10 minutes in an oven heated to 170 C