01 -
Lightly coat the inside of the slow cooker with non-stick cooking spray to prevent sticking.
02 -
Place the diced sweet potatoes into the slow cooker. Add butter, brown sugar, maple syrup, pumpkin pie spice, cinnamon, and salt. Stir thoroughly to ensure the sweet potatoes are evenly coated with seasonings and sweeteners.
03 -
Cover and cook on LOW for 4 hours, stirring once halfway through, until the sweet potatoes are fork-tender.
04 -
Five minutes before serving, evenly distribute mini marshmallows over the hot sweet potatoes. Re-cover and allow marshmallows to melt for approximately 5 minutes.
05 -
Serve directly from the slow cooker once the marshmallows are fully melted, ensuring each portion includes both sweet potatoes and the gooey topping.