Dessert is a culinary contribution babe!! How about a really fantastic bottle (or two) of amaro for post-dinner? Stun them with "amaro service": orange slices, vanilla ice cream, ice cubes. chefs kiss! Or I'd go app route: some sort of impossible to ignore dip and just be like "only if you want, no pressure!" https://www.alisoneroman.com/recipes/labneh-dip-with-sizzled-scallions-and-chile