Which race of beings forged Mjolnir?

The story behind the answer

Dwarves forged Mjölnir. In the myths, the master smiths Brokkr and Sindri (also called Eitri) created Thor’s hammer during a wager with Loki. Loki, disguised as a biting fly, tried to sabotage the forging, causing the hammer’s handle to come out short—why Mjölnir is wielded one-handed. Despite this, it became the gods’ most fearsome weapon.

Dwarves in Norse lore are unparalleled craftsmen from Svartalfheim, forging other treasures like Odin’s