Sookie says this phrase to one of her kitchen assistants; it means “I need the large sheets of paper” in Spanish. She is making meringue, and needs the sheets of baking paper to line the baking tray.
The Spanish-speaking kitchen staff at the inn isn’t very realistic, as the Hispanic population in rural Connecticut isn’t that big, and the majority of Hispanics in Connecticut are American-born and would already speak English. It’s more in keeping with California, where Gilmore Girls was made, which has a Hispanic population of around 39% with a high rate of immigration from Latin America.
The Annotated Gilmore Girls 