Preheat oven to 400 or as directed on the package
Grease baking pan or place parchment paper on pan
Combine cinnamon and sugar
Cut a line into the French rolls using a serrated knife, but be careful not to cut all the way through.
Cut Large Marshmallows in half
Dip each Marshmallow half into melted butter, and then roll into cinnamon and sugar mixture
Place Marshmallow into each cut roll
Place on baking pan, and bake for 5-10 minutes as directed.
Carefully remove pan from oven and allow to cool before eating.
These rolls will harden as they cool. They are best enjoyed fresh the same day.