Update: It appears the winner was indeed leaked; probably on accident. Read on for details — but beware of spoilers.

“MasterChef” is set to crown its Season 10 champion Wednesday night on Fox, but it appears the winner has already been leaked.

A source claims that contestant Dorian Hunter will be announced the champ in tonight’s finale after a former winner spilled the news online.

A screenshot — of a since-deleted Facebook post — provided to The Post shows Hunter posing with host Gordon Ramsay, Aarón Sanchez, Joe Bastianich and previous winners including Jennifer Behm (Season 2), Courtney Lapresi (Season 5), Gerron Hurt (Season 9), Whitney Miller (Season 1), Dino Angelo Luciano (Season 8) and Shaun O’Neale (Season 7).

Fellow final-three contestants Sarah Faherty and Nick DiGiovanni are not pictured, leading a social media watchdog to suspect Hunter is the big winner.

The photo was reportedly taken during the filming of the 200th episode, in which MasterChef will award the $250,000 grand prize to the winner of the “milestone 10th season.”

A rep for Fox declined to comment.

Hunter, a fan favorite declared to be the one to “watch out for” by Ramsay, would be a historic winner for “MasterChef.” The Georgia mother of two, 45, would be the first black woman to win the cooking competition.

The episode will air tonight on Fox at 8 p.m.