Caramelized Shallot-Walnut Vinaigrette Sauce

Denser and heftier than other vinaigrettes, this rich brown sauce complements cold roasted pork, turkey, game, or beef. Or spoon a little over hot sautéed calf’s liver and potatoes—both thin-sliced. For a vegetable meal, serve to tie together roasted squash slices, braised greens, and mixed grains. Add roasted walnuts to highlight the nuttiness and provide crunch.