I used a whole head of cauliflower for this, and a fair sized chunk of my pecorino. I used to have a wee bottle of white truffle oil but it was not to be found. This went fairly close to the recipe except I had no heavy cream so I made do with half & half plus a slug of buttermilk. I think the croutons were a nice addition, and I still have chives in the patio garden so they were available to add a little color. I stirred in a generous dollop of garlic paste because garlic helps everything. My stick blender got a workout. We give this two thumbs up.