Warm the Nutella in a water bath until soft.
Slice the brioche 1/4 inch thick.
Spread the softened Nutella on one piece of bread, the raspberry jam on the other. Coat lightly. Put the two pieces together to form a sandwich.
In a Teflon pan, melt 1/2 Tbsp of butter over medium heat. Place the sandwich in and cook until golden, then flip over and do the same thing.
Cut the sandwich into 4 equal pieces and give it a dusting of powdered sugar and serve it warm.
Makes: 6