Sometimes a basic vinaigrette just won’t do. Sometimes we need a velvety, white dressing drizzled on our greens. And yet ranch is often a little, how do we say this, salad-bar-at-the-steakhouse? Occasionally, yes, we love it. But this dressing, well, this is a more oo-la-la, less yee-haw, creamy dressing. And it’s so, so easy.