Bacon-Cheddar Twice-Baked Potatoes:
Prepare as above, except in Step 2 stir in 1/3 cup cooked, crumbled bacon along with the sour cream; substitute cheddar cheese for the Gruyere cheese.
Southwestern Twice Baked Potatoes:
Prepare as above, except in Step 2 substitute snipped fresh cilantro for the chives; substitute Monterey Jack cheese with jalapenos for the Gruyere. Serve with purchased salsa. Omit optional chive garnish.