Preheat the oven to 400ºF.
Pierce holes in the sweet potatoes with a fork, & bake on a foil lined baking sheet for about 45 minutes, or until soft. Let cool until room temperature.
Slice the tops off of the potatoes and scoop the flesh out into a large bowl, being careful not to tear the skins.
Add the melted butter, cinnamon, nutmeg, & sea salt and smash with a fork until they are a desired consistency (I like mine more chunky than mashed).
Use a small spoon to fill up the empty sweet potato skins.
Combine the topping ingredients in a small bowl & distribute across the tops of each potato.
Return the sweet potatoes to the baking sheet & bake for an additional 15 minutes, or until warm throughout & slightly browned on top.
Enjoy!