Logo:

The logo for the catering service with a nostalgic brand personality could feature a combination of vintage elements and culinary symbolism. It could be a stylized illustration of a classic chef's hat or toque with a touch of retro flair, perhaps showcasing a vibrant color palette reminiscent of the 1950s or 1960s. The typography chosen for the business name should reflect a classic, elegant style, further reinforcing the nostalgic feel.

Slogan:

"Bringing back the taste of timeless memories."

This slogan captures the essence of the catering service's nostalgic brand personality. It suggests that their food evokes a sense of nostalgia, transporting customers back to cherished memories and comforting moments.