Preheat your oven to 400°F (200°C).

Peel and slice the sweet potatoes into thin medallions about 1/8-inch thick, layering them in a baking dish.

In a small saucepan, combine butter, brown sugar, water, cinnamon, cloves, nutmeg, and salt. Heat over medium until melted and glossy.

Brush about ¾ of the sauce over the sweet potato medallions, ensuring all slices are well-coated.

Cover the baking dish with aluminum foil and bake for 45-50 minutes or until the sweet potatoes are tender.

Remove the foil and drizzle the remaining sauce over the sweet potatoes, then sprinkle with pecans and mini marshmallows.

Broil for 1-2 minutes, watching closely to achieve a golden-brown color.

Let cool for 10-15 minutes before serving.