The Gilded Truffle is an elegant, upscale restaurant in Springfield.
The restaurant once employed Groundskeeper Willie until he quit and returned to his old job at Springfield Elementary.
Bart, posing as "Woodrow," made a date to meet Mrs. Krabappel for dinner at the restaurant, but stood her up. He did this specifically as revenge for when she confiscated his yo-yo.
Homer and Marge made plans to go to The Gilded Truffle for their wedding anniversary, but when Grampa didn't show up to babysit, they ended up having to take the kids along. The kids didn't want to go to The Gilded Truffle, so at their insistence the family ended up eating at the Up, Up and Buffet! instead.
Homer gave the restaurant a bad review when he got a job as a food critic, only because other critics told him to do so.
Homer took his family to The Gilded Truffle after he took over Krusty's time slot on Channel 6. While there, he signed an autograph for Ralph Wiggum and dreamed of saving Abraham Lincoln and John F Kennedy from assassination.
Homer dines there with Marge, along with an entourage consisting of Carl and Lenny.
This is also where Grampa takes Selma on a date.
Ladies. Don't die a virgin. There might be Muslims up there...