What kind of coffee can you add cinnamon to?

It's a cappuccino.

Cappuccino is an Italian coffee that is blended with equal parts espresso and steam-foamed milk. The color of the coffee is like the dark brown tunic of a cappuccino friar covered with a turban, hence the name.

The traditional cappuccino is one-third espresso, one-third steamed milk, and one-third frothed milk, and is dusted with small particles of powdered cinnamon.

Expanded information:

Name origin

Cappuccino coffee tastes great, but the origin of its name is much more learned, and has always been the best body of material for the study of textual change in Europe and America. The history of the word "Cappuccino" is a good example of how a word can often look like something and end up with other meanings, far beyond what its creator intended.

It sounds complicated. The Capuchins of St. Francis, founded after 1525, wore brown robes and a pointed hat when they arrived in Italy.

The locals felt that the monks' clothing was very special, so they gave them the name Cappuccino, which is the Italian word for the loose-fitting robes and small pointed hats worn by the monks and is derived from the Italian word for "turban," i.e., Cappuccino.

Baidu Wikipedia - Cappuccino