My grandmother used this recipe for leaf lettuce salad. Take a small can of Carnation condensed milk, add 1 tablespoon of sugar, enough white vinegar - add slowly and stir- to make the milk curdle. Too much or too little vinegar and it will not work, and it isn't instant. The milk will become very smooth and thick and tangy/sweet. Pour over lettuce which has been torn and twisted into bite sized pieces. Very different, very good.