Thaw your puff pastry dough in the refrigerator overnight.

Preheat your oven to 425℉.

Lay one sheet of puff pastry on a non-stick baking sheet. Use a rolling pin to flatten it to the desired thickness.

Cut your puff pastry into the tree shape.

Spread Nutella all over the bottom layer and sprinkle the marshmallows on top.

Place your second sheet of puff pastry on top and trim the edges to match the bottom piece.

Slice the sides of the tree shape to create branches. Once the pieces are cut, twist them to create the spiral effect. 

Paint the top of your pastry with the egg wash and pop it into the oven to bake for 15-20 minutes!

Let cool for 10-15 minutes. Serve with warmed Nutella to dip!