Warm the oven up to 375 degrees. Melt the butter in a small, flat dish.
Step 1
Add the sugar and cinnamon to a second small dish and mix them together.
Step 2
Divide crescents along perforations. Place a marshmallow in the crescent centre after dipping it in butter and cinnamon sugar.
Step 3
Roll the crescent to the skinny end after folding the top two corners. Seal all corners tightly to prevent holes. Use remaining marshmallows and crescents.
Step 4
Put crescents on a parchment-lined rimmed baking sheet. Brush leftover butter and cinnamon sugar on crescents if desired.
Step 5
Bake crescents for 11-13 minutes until bright golden brown and fluffy. Cool gently before serving.