To add a single key: value pair to a dictionary, we can use the syntax:

dictionary[key] = value

For example, if we had our menu dictionary from the first exercise:

menu = {"oatmeal": 3, "avocado toast": 6, "carrot juice": 5, "blueberry muffin": 2}

And we wanted to add a new item, "cheesecake" for 8 dollars, we could use:

menu["cheesecake"] = 8

Now, menu looks like:

{"oatmeal": 3, "avocado toast": 6, "carrot juice": 5, "blueberry muffin": 2, "cheesecake": 8}