Wash and clean artichokes by rinsing under water and removing any dead or wilted leaves.
Using a sharp knife, cut the top 1/4-1/3 off the top of the artichoke, as well as the bottom 1/2 inch of the stem.
Trim the outer leaves with a sharp knife or kitchen shears, if desired.
Place one cup of water into the Instant Pot with a trivet, steamer rack, or steamer basket. Place the artichokes on the trivet/rack/basket (does not matter which side is facing up).
Lock the lid, turn the knob to SEALING, and cook on manual high pressure for 20 minutes for small-medium artichokes, 25 minutes for medium to large, and 30-40 for extra large artichokes.
After pressure cooking, perform a quick release by turning the sealing knob to venting.
Carefully remove the artichokes with tongs to a plate, and let cool slightly before serving. Enjoy with melted butter, salt, lemon juice, or your favorite aioli.