Blood Orange Hollandaise Sauce Makes about 3/4 cup 3 large egg yolks 1 teaspoon dry mustard 1 tablespoon fresh lemon juice 3 tablespoons fresh blood orange juice 1 cup unsalted butter, melted and kept hot Salt and pepper 1. Put the yolks, mustard, lemon and orange juice into a blender or food processor. 2. Turn …