Instant Pot Grits just might be the creamiest, most delicious grits you ever tasted. No more standing over the stove stirring. The pressure cooker does all of the work for you. And no lumps!
Add bacon grease or oil to inner pot of Instant Pot. Turn "Saute" mode on. Once hot, add grits and cook and stir for 2 minutes.
Add water, half-and-half, salt, and butter. Turn Instant Pot off, place lid on with valve in "sealing" position. Set to Pressure Cook on HIGH for 10 minutes.
Allow a 15 minute Natural Release and then manually release the remaining pressure. Remove lid and stir in cheese. Stir well. Grits will thicken up some as they cool slightly.
Notes
Note: Cooking time does not include time for Instant Pot to pressurize. This can take about 10 minutes.