The taste is sweet and syrupy with hints of balsamic vinegar or tamarind. Some recipes may contain white vinegar or olive oil. Placing them in water slightly acidified with vinegar or lemon juice can prevent the discoloration. Small jugs contained condiments like olive oil, vinegar and sweeteners. One simple recipe calls for purslane, olive oil, red wine vinegar and dill. A sauce made by mixing vinegar and chilli powder is also common. Common ingredients include buttermilk, butter, cocoa, vinegar, and flour. It is traditionally served with sliced onion, vinegar, and bread. Cornichons are tart French pickles made from gherkins pickled in vinegar and tarragon. It was made with pork, salt, vinegar and blood. Pork and beef are cured overnight in vinegar and chili powder. Red peppercorns usually consists of ripe peppercorn drupes preserved in brine and vinegar. Modena is also known in culinary circles for its production of balsamic vinegar. A popular drink in China is called "Apple cider vinegar" (). The herbs are replaced by herbal essences, e.g., tarragon vinegar.