The translucent sauce inside the meat loaf or sandwich is: mayonnaise + more cooking oil, some bakeries will also add lard to the mayonnaise, also this effect.

The key to making a sauce like this at home is to keep whisking the mayonnaise, then add salad oil or other vegetable oil little by little until it's white and sticky.

When you want to buy directly, the general supermarkets do not have, you can go to the back kitchen of the restaurant or Taobao bakery to buy, such as the bakery special mayonnaise of the Holloman, to choose the kind of 4, 5 kilograms of the big white bucket (for different bread, still need to add a little bit of oil), the general small bakery most of the use of the wholesale market of the kind of no-name brand, it should not be a natural raw materials, better some of the so-called Palm oil mayonnaise.