Preheat broiler and cut baked potatoes in half lengthwise.

Using a spoon, make a shallow trough in the cut side of the potato to hold filling, leaving at least a ¼" border around edges. Be careful not to take too much potato out, just enough to keep filling from sliding off.

Brush potatoes with unsalted butter and season lightly with salt and pepper. Turn potatoes over and butter and season the skin side. Place them on a baking sheet skin side-up and broil 2–3 minutes until starting to brown. Turn over and broil 2–3 minutes more then remove from oven.

Spoon 1 Tbsp pizza sauce into each potato skin. Top with 2 pepperoni slices and 1 tablespoon of mozzarella cheese. If the pepperoni is too big for the potato, just dice it up and scatter it over the sauce.

Broil about 2–3 minutes more until cheese is melted then remove from oven. Garnish with Italian spice and chives or green onion. Enjoy while still warm.