Place the cabbage in a bowl with vegetable broth, place in microwave for 5 minutes. This will soften the leaves of the cabbage and make it more easy to work with.
Pour oil in the Instant Pot and set to sauté
Add onion, garlic, carots and sprinkle salt and pepper. Sauté for 15 minutes
After 15 minutes, add tomato sauce and sour cream and mix well. Place the sauté mixture into a bowl. Wash the Instant Pot.
Separate the cabbage leaves.
Fill the cabbage leaves with sauté mixture and roll it.
Place cabbage rolls in the trivet in the Instant Pot.
Lock the lid of the Instant Pot.
Set the instant pot to “Manual” at high pressure for 3 minutes, release the pressure naturally.