Modern chef Su Wan travels through time, becoming a substitute maid married into the Great Yao Dynasty. Her Osmanthus Cake makes Emperor Xiao Che withdraw his order. She uses cooking as her blade to carve her path in the deep palace, progressing from odd jobs to running the imperial side kitchen. She wins over officials and impresses royal chefs with her dishes. She saves banquets, competes, and reforms the Imperial Kitchen system, warming the palace with everyday food.