Remove your 75% cooked baked potatoes from the Instant Pot.
Using the back of a grater push down the potatoes so that they reduce by half in height.
Season the skin with salt and pepper and rub olive oil into the skin.
Place the potatoes into a casserole dish that is of the right size to fit in the Instant Pot. Lower the potatoes in the dish onto the steamer shelf disregarding the steam bowl that you used to cook the baked potatoes.
Mix together butter, the extra olive oil, the fresh thyme and the garlic and Brush the tops of the baked potatoes with them.
Place the lid on the Instant Pot, set to sealing and cook on manual for 5 minutes.
Quickly release pressure (QPR) add some grated cheese and serve.