Most classic purees usually include large quantities of butter or heavy cream. This recipe is lighter, less rich and delicious. One night I made dinner and, without asking, served a puree of cauliflower and potatoes with broiled chicken and string beans. The puree, which was enough for six, was devoured by four, and I now receive frequent requests for it. Use this recipe as a guide for pureeing other vegetables. Use a ration of potato to vegetable 1 to 3 or, at most, 1 to 2. NOTE: Using a food processor to puree potatoes alone will make them pasty, but using it to puree them together with another vegetable works exceptionally well. I had to do it in two batches because I have a smaller food processor. Put cauliflower in first then the potatoes on top. I did not have to use milk it was smooth enough without it. Yummy!