Thick milk is a traditional American milk beverage. It is a thickened dairy product. The process is very simple. You mix two types of milk and then put them on a warm plate. Cover it with another warm plate. After 24 hours, the mixture will be ready to drink. It can be consumed straight from the refrigerator or used in cooking. This method was most popular in the 60s and 70s. Older varieties of milk often contain less pure dairy products and are thicker.
There are different methods for thickening milk. The most popular is the reduction method, where you simmer the liquid to remove moisture, leaving it closer to a solid. This method works with many liquids, including milk. This method is used for soups, stews, and even desserts, and is best used for dishes where you’ll need a thick consistency.