Prep the squash: Peel, deseed, and cube your butternut squash. Pro tip: Look for pre-cut squash at your grocery store to save time!
Sauté the aromatics: Set your Instant Pot to sauté mode. Add a splash of olive oil, then toss in diced onions and minced garlic. Cook until fragrant and translucent.
Toast the rice: Add your Arborio rice to the pot and stir for a minute or two to enhance its nutty flavor.
Add the squash: Stir in the cubed butternut squash to combine with the rice and aromatics.
Add liquids: Pour in your broth and white wine (if using). Be sure to scrape the bottom of the pot to prevent any burning.
Pressure cook: Lock the lid, set the valve to sealing, and cook on high pressure for 6 minutes.
Release and finish: Once the cooking time is up, carefully do a quick release of the pressure. Stir in your Parmesan cheese, salt, black pepper, and any additional seasonings.
Serve: Garnish with fresh herbs and enjoy your creamy butternut squash risotto!