Kinder Ferrero chocolate cupcakes

Why I Love This Recipe
I stumbled upon this recipe following some Italian blogs. I just loved their simplicity and ingredients. The first impression wasn't wrong, because they turned out to be great, soft and moist. I brought just slight changes to the original recipe - I put less sugar (Kinder chocolate is already sweet enough), but also because I didn't have any natural yogurt, but only sweetened one in my fridge. And then I melted some chocolate and topped the cupcakes.
The recipe is also published on my blog:
http://dajana-bakerscorner.blogspot.com/2009/04/kinder-for-little-and-big-children.html
Ingredients You'll Need
250 g flour
100 g sugar
70 g butter
250 g yogurt
1 package of baking powder (4 teaspoons)
2 eggs
1 teaspoon vanilla extract
100 g Kinder Ferrero chocolate
+ 100 g for decoration
Directions
Mix softened butter with sugar and vanilla extract in a bowl.
Add eggs and mix well again.
Add flour sifted together with baking powder.
And in the end, add yogurt and 100 g of chopped chocolate.
Fill the paper cups to 2/3 and bake in an oven preheated to 180°C for about 20 minutes.
Melt the rest of the chocolate and pour over cooled cupcakes.