Cupcakes with frosting and camerized hazelnut

 Cupcakes with frosting and caramelized hazelnuts recipe For the cupcakes:
250 g flour
125 g butter
2 eggs
1 vanilla
zest of half an orange
220 g sugar
Half cup milk
For caramelized hazelnuts:
sugar covering well on the bottom of a pan
1 1/2 handful of hazelnuts (halved)
1 dose glaze (optional)