How to make
Beat the egg with the sugar, then add the yoghurt. While stirring nonstop, add the melted butter.
Mix together and sift the flour, cinnamon, vanilla and baking powder, add them as well and stir everything very well.
To the mixture, add the peeled and coarsely grated apples and stir everything. Using a spoon, distribute the mixture into muffin forms.
Bake the muffins in a preheated 360°F (180 °C) oven for about 20-30 min.