Remove ham from refrigerator about 30 minutes before cooking in Instant Pot.
Prepare glaze for ham by whisking together ingredients in a bowl and set aside.
Use trivet in Instant Pot by placing it in the pot.
Add 1 c. water to the bottom of the IP.
Tear off large sheet of aluminum foil and place ham in the middle.
Wrap the sides up around the ham and place in Instant Pot.
Separate slices of ham and pour glaze evenly throughout all of the slices.
Cover top of ham with tin foil.
Set Instant Pot to 2 minutes per pound (so for a 3 lb ham it would only be 6 minutes).
Make sure the sealing valve is closed.
After Instant Pot has beeped, let rest for 5 minutes and then do a quick release.
Remove from Instant Pot and serve.