Make this recipe a recipe that people in that category can eat. categories: ['vegetarian'], recipe: in a food processor or blender, mix mustard, salt, egg, and vinegar. add oil very slowly, beating constantly. add lemon juice. pulse in minced garlic, oregano, worcestershire sauce, and pepper. refrigerate mixture. note: the risk of illness is very low with raw eggs, but to be sure, use a pasteurized egg.

Target recipe: in a small bowl, combine the milk and vinegar or lemon juice. let sit for 5 minutes. (this process will produce buttermilk. alternatively, you can just use 1/2 c "real" buttermilk, but i use this method because i never have the real stuff on hand.). meanwhile, combine the remaining ingredients in a blender or food processor. with the blade running, slowly pour in the buttermilk and blend just until thickened (if you over-blend, it will curdle). cover tightly and chill well before serving so the flavors have a chance to meld. dressing will keep for about 4 days (though it may need another whirl in the blender / food processor if it separates).