Put the flour, butter or margarine, sugar, vanilla sugar, eggs, baking powder and the milk in a large bowl and work into a viscous dough.
Then add Fanta (possibly more or less than indicated, best to taste yourself) and lemon peel to taste. Mix everything well and pour into the muffin cups.
Bake at 170 degrees top / bottom heat for about 10-15 minutes, they should still be light yellow.
Let cool for at least an hour.
Tip:
If you like, pour sugar or chocolate over the mufins.