Preheat oven to 425°. Place sweet potatoes on a lined baking sheet and rub a small amount of oil on each one. Bake the sweet potatoes for 45-55 minutes or until tender when pierced with a fork.
While the sweet potatoes are cooking, heat ghee/oil in a large skillet over medium heat. Add onion and peppers and sauté until they begin to soften. Add ground beef and season with salt and pepper, cook until the meat is completely cooked through.
Add Masala Mama Vindaloo Sauce and brown sugar to the skillet and simmer 2-3 minutes.
To assemble, make a slice in the center of each cooked sweet potato and spread the ends apart a bit so that the potato forms a little boat. Spoon the Vindaloo Sloppy Joe Sauce over the sweet potatoes and garnish with scallions and sour cream. Though optional, the cool sour cream is magical!