Beat the butter until creamy. Add sugar, vanilla and Nutella and mix until light. Add the eggs and beat well. Mix the flour and baking soda.
2
Gradually add to the creamy preparation until well mixed. Half-fill paper cake cups in muffin tins with the mix.Bake for 15 to 20 minutes at 375F. Remove from tin and let cool. Use Nutella for icing.