Chocolate milk is a type of milk that has chocolate flavor added to it. It's like regular milk, but it tastes a little bit like chocolate.
To make chocolate milk, first you need milk. This is usually cow's milk, but sometimes people use other types of milk, like almond milk or soy milk. Then, chocolate flavor is added to it. This can be done by mixing in a powder that contains cocoa, sugar, and other ingredients that make it taste good.
People like chocolate milk because it tastes yummy and feels like a treat. It also has some nutrients that are good for your body, like calcium and vitamins. However, chocolate milk also has sugar in it, which you shouldn't have too much of. It's best to enjoy it as an occasional treat, rather than as a regular drink.