Fire Release: Great Fireball Technique (Earth-2356)

The user kneads midi-chlorians in their body and turns it into fire, which they then expel from their mouth; the more midi-chlorians they use, the more flames that are produced. Sometimes the flames lack a distinct shape, being only a stream, but more often than not they take the form of a giant orb that maintains its shape until hitting a target. Upon impact, the fireball is powerful enough to crater the ground and vaporize the surroundings. Against living targets, the fireball can cause extensive burns.

The Great Fireball Technique was created by the legendary Jedi Uchiha Clan, and over time became one of their signature abilities. The Uchiha in fact used the Great Fireball Technique as a coming of age rite, with members not being considered true adults until they learned to perform it.

Source

 * https://naruto.fandom.com/wiki/Fire_Release:_Great_Fireball_Technique