Cultured Butter

I fell in love with cultured butter (which is what all butter used to be, at least according to my farm-raised mom) five or six years ago. It was so different from regular butter that even my daughter, who was only four or five at the time, thought it tasted strange—though of course she, too, immediately decided that she loved it. I’ve tried piima starter cultures from various sources over the years, and they each yield a slightly different flavor and consistency. Some thicken the ro