"Sweet Potato Crescent Bites from Delish.com are a great appetizer for this Thanksgiving...."
Cooking spray
medium sweet potatoes (about 1 1/4 lb.), scrubbed clean
packed brown sugar
heavy cream
ground cinnamon
pure vanilla extract
kosher salt
(8-oz.) refrigerated Crescent rolls
mini marshmallows
whole pecans
maple syrup, for serving (optional)