The Instant Pot Chicken Drumsticks' time to cook is going to depend on how long it takes the appliance to come up to pressure. The more drumsticks you put in the pot, the longer this will take. Once it reaches pressure, then the cook time is 10 minutes. After that, I do recommend letting the Instant Pot natural release for at least 5 minutes before using a quick release for the rest of the pressure. If you can wait longer, or wait until the pressure drops naturally. Natural pressure release will give you the most tender drumsticks if you want fall off the bone tender meat.