Trim artichoke leaves and stem. Using kitchen scissors, trim the top ¼ of each artichoke leaf removing the pointy end. Trim artichoke stem using kitchen knife until it is 1 inch long.
Make compound butter by mixing 1 stick of softened butter and 2 tablespoons of minced garlic.
Fill and top artichokes with compound butter by smearing the butter on the top of the artichoke and pulling butter into leaves with spatula.
Place trivet into instant pot.
Add 1 cup of water.
Place artichokes on trivet, stem side down.
Cover and seal Instant Pot. Turn vent to sealing position.
Pressure cook on high for 13 minutes.. Timing will vary based on the size of artichokes. If you like your artichokes very soft, add an additional 2 minutes to the cook times below.Extra Large-15 minutesLarge-12 MinutesMedium- 10 minutesSmall- 5 minutes
When timer goes off, carefully turn vent to release position. Quick release until steam no longer comes from the Instant Pot.
Open Instant Pot.
Remove artichokes and serve with 3 tablespoons of melted butter.