Makes 1 1/2 cups sauce Ingredients 3 tablespoons white wine vinegar or cider vinegar 1/2 teaspoon cracked black peppercorns 3 tablespoons water, plus more as needed 3 egg yolks, lightly beaten 1 cup (2 sticks) unsalted butter, melted and kept warm 1/2 tablespoon fresh lemon juice, plus more as needed […]