You can use the frothed milk in various drinks, such as lattes, cappuccinos, hot chocolate, or chai tea. Brew an espresso and pour it into a mug to make a latte or cappuccino. Then, stir some of the frothed milk's liquid into the mug. Finally, spoon some foam on top of the drink and enjoy. Heat milk, chocolate, or tea in a saucepan over low heat, stirring until smooth and hot to make hot chocolate or chai tea. Then, pour the mixture into a mug and top it with foam from the frothed milk.