Fill a medium saucepan with water. Wash cauliflower florets, and add to the pan. Place on stove and boil on high heat for 20 minutes. When done drain hot water, and cook down with cold water to cool slightly. Using hands squeeze out excess water. Place in a high-speed blender, add cream, garlic, add 1/4 tsp salt. More to taste. Puree till smooth.