Pour water in the Instant Pot and add cornish hens.
Close the lid of the Instant Pot and turn the valve to a Sealing position.
Press the "Pressure Cook" or "Manual" button and set the time to 20 minutes on High pressure for fresh cornish hens (or for 50 minutes for frozen).
When it's done cooking, quick release (QR) the steam.
Carefully remove cornish hens from the Instant Pot and serve.
If desired, put cooked cornish hens in the oven under the broiler for 5 minutes to brown the skin. If cooking just 1 cornish hen, reduce pressure cooking time by 5 minutes. If cooking more than 2 cornish hens, increase pressure cooking time by 5 minutes.Click here for all my Instant Pot recipes >>