This one probably looks very hard, however, it isn’t at all. Follow the steps and you will easily perfect your Rosetta technique. Tilt your cup about 45 degrees and start pouring the milk, but don’t hold the pitcher too close to the cup. Make sure the stream of milk is thin, so that it creates the base as it sinks to the bottom.
When the cup is three quarters full put the pitcher closer to the cup until it rests on the cup. Once the pitcher touches the cup, pour a bit more milk and you’ll see a dot of white foam. At this point, start moving the pitcher from one side to the other. When you reach the end of the cup, start pouring less milk, lift the pitcher and start moving the milk stream forward through the center.