1, the main ingredients of salad dressing is vegetable oil, egg yolks and brewing vinegar, plus seasonings and spices and other modifications. Which vegetable oil in Europe is mostly with olive oil, and in Asia is generally used soybean salad oil. Oil and egg yolks after thorough mixing, emulsification occurs, it becomes a delicious salad dressing. And a small amount of vinegar is mainly antibacterial, so the salad dressing generally does not contain preservatives, can be considered a "green food".

2, salad dressing can also be homemade at home, the method is to take 500 grams of salad oil, egg yolks 1, the yolks into a dry container, using a whisk to beat the bubbles, and then constantly add salad oil to continue to beat and stir, so that the oil and yolks are completely melted into a viscous form, and then add an appropriate amount of salt and sugar can be. The secret of making is that the oil must be added slowly, otherwise it is easy to fail. In recent years, due to the salad dishes are easy to make, taste and good, and therefore favored by people.

3, but at the same time, salad dressing is indeed a high-calorie, high-fat, high-cholesterol food, which is determined by its composition. According to statistics, each (15g) salad dressing contains about 100kcal, equivalent to the same weight of rice or white flour twice, the fatty acids and cholesterol content is also higher than the average food, eaten in excess of the human cardiovascular system will indeed cause adverse effects.