In a Thanksgiving episode on TV's "Friends", what dish did Monica have to make for Ross?

In a Thanksgiving episode of TV’s “Friends,” Monica had to make lumpy mashed potatoes for Ross. Ross specifically preferred mashed potatoes with lumps, unlike the smoother version Monica might normally have served.

The moment comes from “The One Where Underdog Gets Away,” the ninth episode of the first season, which aired in 1994. Monica and Ross were preparing Thanksgiving dinner while their parents were away, and each guest wanted potatoes prepared differently.

Ross wanted lumpy mashed potatoes, Phoebe wanted mashed potatoes with peas and onions, and Joey wanted tater tots. Monica’s willingness to prepare several separate potato dishes became an early example of her perfectionism and her habit of accommodating everyone at dinner.

This detail is sometimes confused with later “Friends” Thanksgiving episodes, especially those involving Ross’s famous leftover turkey sandwich and its “moist maker.” Those stories feature different food-related jokes, but the Thanksgiving potato request is specifically Ross’s lumpy mashed potatoes.