Instant Pot Pineapple Ham (Pressure Cooker Gammon & Pineapple)

My Instant Pot Pineapple Ham or Pressure Cooker Gammon & Pineapple if you grew up in England like I did, is the dream centrepiece for Christmas, Easter and family gatherings. Easy to prepare, cheap, can be made ahead of time and a favourite Instant Pot recipe in the Milner household.