Preheat oven to 425°.
Line half baker sheet with parchment paper.
Scrub potatoes as well to get them nice and clean.
Cut lengthwise.
Brush both sides of potato with olive oil.
Sprinkle well with kosher salt (or garlic salt) and black pepper.
On parchment paper lay down two pats of butter per potato.
Sprinkle area where potato will lie with shredded Parmesan cheese.
Press down each potato half onto butter and Parmesan.
Bake in preheated oven for 30 to 40 minutes until potatoes are tender and nice and golden crispy brown.
Remove from oven, slice lengthwise, and squeeze potato to loosen.
Top with favorite toppings: butter, sour cream, grated cheese, scallions, chives, cooked and chopped bacon, kosher salt and pepper, and any other toppings you like.
