I will use the Strawberry Daiquiri to explain how the app works. As you can see, the name of the drink being looked at is at the top-right corner of the page, followed by the type of drink (Cocktail, Shot, Ordinary). The ingredients and their amounts are being displayed in the box called "Elements" and underneath the can find instructions as to how to make the drink.
There is also a "Home" always available for the user to go back to the initial page should they want to look at any of the other drinks available.