Chocolate & Hazelnut Braided Bread

white bread flour1 tsp (5 ml) salt2 tsp (10 ml) sugar2 tsp (10 ml) active dried yeast40 g butter, melted¼ C (60 ml) warm milk225 ml warm water½ jar Nutella (or any chocolate spread)30 g roasted hazelnuts, roughly chopped1 egg, lightly whisked