Preheat oven to 425°. Line a large rimmed baking sheet with foil.
Place potatoes on prepared pan; drizzle with 1 tablespoon oil; sprinkle with 1 teaspoon salt.
Bake until fork-tender, about 45 minutes. Let cool for 10 minutes. Cut a wedge out of the top third of each potato, and scoop out pulp, leaving a ¼-inch border. Return to pan. Reduce oven temperature to 400°.
In a large bowl, using a potato masher, mash together potato pulp, cheese, butter, egg, rosemary, pepper, and remaining 1 teaspoon salt until smooth. Spoon into potato shells.
Bake until light golden brown, about 20 minutes.
Meanwhile, in a small saucepan, heat remaining 1 tablespoon oil over medium-high heat. Add tasso; cook until browned, about 3 minutes. Remove from heat, and stir in cracklin’s. Top potatoes with tasso mixture; garnish with rosemary, if desired.
Recipe by Louisiana Cookin' at https://louisianacookin.com/cracklin-tasso-twice-baked-sweet-potatoes/