Preheat your oven to 400 degrees Fahrenheit.

Scrub the potatoes and carefully poke with a knife all over.

Place onto a baking sheet, and bake for about 45 minutes, until potatoes are tender.

Allow the potatoes to cool enough to handle, and peel the potatoes. Add them to a large mixing bowl.

In a medium sauce pan, heat up the butter, cream, sage, rosemary, cinnamon, nutmeg, and salt, until steamy, stirring occasionally.

Add the warm sauce, a little at a time, as you hand mash the potatoes (you may not need all of it).

Add pepper to taste, and more salt, if needed.

Add to your serving bowl and garnish with fresh rosemary, sage, extra butter, etc.