about 2-4 tbsp Nutella or couple handfuls milk/dark chocolate chips
8giant marshmallowssliced or use normal or mini marshmallows
1egg lightly beatenoptional
1tbspgranulated sugaroptional
Instructions
Preheat the oven to 220C (425F).
Unroll your puff pastry, keeping it on the paper it is wrapped in. Cut in half, trimming the edges if necessary. Transfer onto a baking tray.
Fold in each edge to form an one inch border. Prick inside the border with a fork. If using the egg, brush the edges and sprinkle with a little granulated sugar (optional).
Bake in the middle of the oven until the pastry is puffed and golden 10-12 minutes. Press down the middle to flatten. Change the oven setting to grill (broiler) and move the shelf to near the top.
Spread with Nutella (you may need to warm it in microwave or oven so that it is easy to spread - the tart shells are delicate) or fill the centre with a handful of dark and milk chocolate chips.
Slice the marshmallows in three pieces (if using giant ones) or two if using normal sized ones – alternatively use mini marshmallows. Cover the centre of each tart with the marshmallows.
Put the tarts under the grill (broiler) and watch them very closely. As soon as the marshmallows start to brown, within a minute or two, remove them from the oven.
Serve while fairly hot so that the marshmallows are still gooey and soft.