Uncover; let cool. Cover; chill. Bake dressing, uncovered, until set and top is browned and crisp, 40-45 minutes longer (if chilled, add 10-15 minutes).

Chef Hugh Acheson's deliciously puckery vinaigrette recipe is close to the platonic ideal of a salad dressing — and it takes about five minutes to make. The basic ... oil to one part acid.