Preheat and prep potatoes: Heat oven to 425°F (220°C). Scrub russet potatoes well, dry them, and poke each 6–8 times with a fork.
Season the skins: Rub potatoes with olive oil or melted butter.
Sprinkle generously with kosher salt. This gives you crisp, flavorful skins.
Bake: Place potatoes directly on the oven rack or on a wire rack over a sheet pan. Bake 50–65 minutes, depending on size, until skins are crisp and a fork slides in easily.
Warm the toppings: While potatoes bake, cook or heat proteins (bacon, chili, pulled pork).
Steam or roast veggies. Shred cheeses. Keep hot items warm in small slow cookers or on the stove over low heat.
Prep the bar: Set out bowls for each topping with spoons or tongs.
Label bowls if you have a lot of options. Keep cold items chilled until serving.
Fluff the insides: When potatoes are done, let them rest 5 minutes. Slice lengthwise, squeeze ends to open, and use a fork to fluff the insides with a pat of butter, salt, and pepper.
Serve: Arrange potatoes in a warm dish or chafing pan.
Place toppings in a buffet line from base layers (butter, cheese) to proteins, veggies, sauces, and finishing touches.
Keep it hot: If hosting, lower oven to 200°F (95°C) and hold extra potatoes inside. Replenish toppings as needed.