Preheat oven to 400 degrees. Prepare Papa's Pie Crust recipe according to directions. Roll out one pie disk onto a lightly floured surface into a 12-inch circle. Brush with melted butter and sprinkle evenly with 2 teaspoons of cinnamon. Roll up tightly and slice into 1/2-inch rounds, like miniature cinnamon rolls.
Arrange and press miniature cinnamon rolls, flat side down, evenly into the bottom and up the sides of a 9-inch glass pie plate, making sure there are no spaces between the rolls. Set aside.
In a large bowl, whisk together mashed sweet potato, brown sugar, heavy cream, half and half, eggs, vanilla, cinnamon, cloves and salt. Using a whisk or switching to a hand mixer, whisk ingredients until smooth and thoroughly combined.
Brush pie crust lightly with egg white/water mixture. Then, pour sweet potato mixture carefully on top of pie crust. Bake for about 40 minutes, or until filling has puffed up slightly and a toothpick inserted in the center comes out clean.
Remove pie from oven and heat broiler. Top pie with halved marshmallows and place under broiler until marshmallows are a golden brown, about 1 minute. Cool pie on a cooling rack before serving.
Cook's Note: Place 16 sliced marshmallows around the outside edge of the pie, follow by 8 slices in the middle then 1 in the center OR simply top with whipped cream when pie is cooled, if desired.