Take at least three generations to ensure generous assortment of grandparents, parents, aunts, uncles and offspring.
Throw in a handful of in-laws and mix with a few family friends.
Mariante in old memories spiced with a few new stories.
Stir occasionall to mix, taking care not to let old grievances come to the surface.
If mixture threatens to boil over, lighten with laughter and restore humour with large quanitities of tolerance and love.