Use a sharp knife and cut cauliflower florets into similar sizes for even cooking. Don’t skip the sauté step—cooking the onions and garlic first builds a rich flavor base. For a chunkier soup, blend only half the soup, leaving some cauliflower pieces intact. Be cautious when blending hot soup; use a towel to hold the blender lid to prevent spills. For dairy-free or vegan versions, omit cream and cheese or use plant-based alternatives. Adjust seasoning at the end since cheese can add saltiness.