A cappuccino is a coffee drink made with espresso and milk, topped with a layer of foam. The difference between a wet and dry cappuccino is the amount of steamed milk and foam used. A dry cappuccino has less steamed milk and more foam, while a wet cappuccino has more steamed milk and less foam. A bone dry cappuccino has no steamed milk at all, just a foam pillow and espresso. An extra dry cappuccino is somewhere between a dry and bone dry cappuccino, with a small splash of milk between the espresso and foam.

To make a dry cappuccino, a single serving of espresso is topped with just a tiny amount of milk, followed by a generous layer of milk foam. Some recipes may include two shots of espresso, but the cappuccino will still be dry as long as it has the right amount of milk. However, there is a chance that a dry cappuccino may taste like a latte, so it is recommended to ask the barista to make it on the dry side to prevent this.

In summary, an extra dry cappuccino is a coffee drink made with a single serving of espresso, a small splash of milk, and a generous layer of milk foam. It is somewhere between a dry and bone dry cappuccino, and is a variation of the traditional cappuccino.