Making flavored butters is a smart idea, since you can keep them, tightly wrapped, in the refrigerator and slice off what you need at a time. This recipe has you make your own "butter" by beating cream in a food processor (or blender) until whipped and then allowed to drain so you're left with something that does indeed have the texture of spreadable butter. Here it's flecked with chopped fresh cilantro and would be delicious with chicken, fish, and even vegetables.