Continuity mistake: During "Put on Your Sunday Clothes" as the men dance downhill the camera sweeps across the lake and a roadway with cars is visible. (00:33:07)
Continuity mistake: When Dolly first sits down at the table at the Harmonia Gardens, she picks up her napkin twice. (01:56:45)
Continuity mistake: When Cornelius meets the girl in the red dress and they dance and sing outdoors on the street, her dress is dragging on the pavement and the hem is clearly filthy. The next scene they arrive at the restaurant and her dress is clean and pressed.
Continuity mistake: When Dolly is purchasing the ticket to Yonkers, she gives the money twice to the cashier.
Continuity mistake: During the "Elegance" number, Minnie Fay is seen handing her money to the woman selling pretzels twice.
Answer: Beets are served with the dinner, as a side dish to the turkey and dumplings. Dolly tries repeatedly to serve them to Horace ("you salt your beets, I'll salt mine"), who repeatedly proclaims his distaste for them. There is no specific mention of cranberry sauce. But they'd be easy to confuse, as both are red and have a consistency not too dissimilar from one another.
Michael Albert