The muja fruit-filled donut was a specific type of donut that had a filling made of muja fruit. At Dex's Diner, a popular eatery located on the planet Coruscant, these donuts were a staple. These Adarian-style donuts, filled with muja fruit, were made by a Crisp-E-O donut droid. Dexter Jettster, the owner, regarded the muja fruit-filled donut as a popular choice. It cost 1.7 credits and was available until the diner's destruction during the initial two years of the Galactic Empire's reign.
Gregory Walker mentioned the muja fruit-filled donut in his in-universe menu-formatted article "Dining at Dex's," which was exclusively available on Hyperspace in 2009.