01 - Set the Instant Pot to Sauté mode. Add butter and once melted, add diced onion. Sauté for 2–3 minutes until softened. Stir in minced garlic and cook for another 30 seconds until fragrant.
02 - Sprinkle flour into the pot and cook, stirring constantly, for 1 minute to form a smooth roux. This will help thicken the soup.
03 - Gradually pour in vegetable broth while whisking continuously to prevent lumps from forming. Ensure the roux is fully dissolved.
04 - Add broccoli florets and grated carrot to the pot. Season with paprika, nutmeg, salt, and pepper. Stir well to combine.
05 - Seal the lid securely. Set to Manual (High Pressure) for 5 minutes. Allow the Instant Pot to come to pressure and cook.
06 - Perform a quick release by carefully moving the steam release valve to venting. Once pressure is released, open the lid and give the soup a stir.
07 - Using an immersion blender, puree the soup to your preferred consistency—either completely smooth or leaving some texture for a chunkier soup.
08 - Set Instant Pot to Sauté (Low). Stir in whole milk and heavy cream. Gradually add shredded cheddar cheese, stirring continuously until fully melted and smooth.
09 - Taste the soup and adjust salt and pepper as needed. Serve hot, garnished with extra cheddar or fresh herbs if desired.