Preheat oven to 400°F.
Peel sweet potatoes, cut them into thin medallions and arrange them in your baking dish.
Place a small or medium saucepan on the stovetop. Add unsalted butter, brown sugar, water, spices and salt. Turn heat to medium and stir ingredients as they melt together.
Once the mixture is fully melted, use a pastry brush to evenly distribute ¾ of your sauce onto sweet potato medallions. Cover baking dish with foil and bake for 45-50 minutes.
Remove baking dish from the oven and take foil off. Distribute the remaining ¼ of your sauce mixture onto the potato medallions. Sprinkle with chopped pecans and mini marshmallows.
Place baking dish back into the oven and turn it to the broil setting. Broil for 1-2 minutes to toast the marshmallows. Keep a close eye on the dish as your broil, it won't take long!
Remove from the oven and allow to cool for 10-15 minutes. Serve and enjoy!
