The Broadway run of “Superior Donuts” is now official, with Tracy Letts’ play set to open on the Rialto in the fall.

Gotham engagement for Letts’ follow-up to his Pulitzer Prize winner “August: Osage County” has been much discussed since “Donuts” preemed last summer at Steppenwolf Theater, the Chicago company that also originated “August.”

Jeffrey Richards, Jean Doumanian, Steve Traxler and Jerry Frankel – the lead producers behind the Broadway run of “August” – produce “Donuts,” which will be helmed on the Rialto by Tina Landau, who directed the Chi bow.

Plot centers on the relationship between the owner of a rundown donut shop in uptown Chicago and his sole employee. No casting has been announced for the Gotham incarnation; Michael McKean and Jon Michael Hill led the cast at Steppenwolf.

Producers aim to open the Rialto stint Oct. 1 at a Shubert theater to be determined.