Crème fraîche is similar to sour cream, but it has a nutty, buttery flavor all its own. Unlike sour cream, crème fraîche can be boiled without curdling so it’s excellent for finishing sauces. Try a spoonful with fresh berries, or instead of whipped cream or ice cream with any dessert. You can buy creme fraiche in supermarkets but it’s quite expensive. And besides, it’s kind of a fun experiment to make it yourself. Buy cream that isn’t ultrapasteurized, cream from a local dairy that comes in an old-fashioned glass bottle will work better for making this velvet-textured cultured cream.