Tangy Vanilla Bean Panna Cotta

The beauty of panna cotta, aside from its simplicity and incredible ease of preparation, is how easily you can adjust the richness and sweetness to suit your taste. The following proportions of heavy cream, buttermilk, and sour cream yield just the right level of richness for me, but you can adjust the amounts of these ingredients according to your preference. I love using Tahitian vanilla beans in this recipe and serving the finished panna cottas with a variety of seasonal fruits.