Ready in 30 minutes, this Instant Pot Cauliflower Soup tastes just like a loaded baked potato soup, but with a fraction of the carbs! Top this soup with bacon, cheddar cheese, and scallions for a satisfying and delicious dinner!
Set the Instant Pot to "saute". Add the olive oil, chopped onions, and minced garlic to the Instant Pot. Saute for 3 minutes until the onions start to soften.
Add the cauliflower florets, chicken broth, dry mustard, and chicken broth to the Instant Pot. Cancel "saute" mode, close the lid, set the Instant Pot to "High" pressure for 15 minutes.
After 15 minutes, carefully quick release the pressure. Be careful as chicken broth might come out the top. Open the lid and with an immersion blender, blend the soup to your desired consistency.
Set the Instant Pot back to "saute". Add the cheeses and milk and stir to combine and to melt the cheese, about 2 minutes. Serve immediately.