My husband's friend's mom made these throughout his childhood. She would set out bowls of fillings and whipped cream and let everyone make his own tart. Luckily she is not one of those people who doesn't share recipes! These are very light and fresh tasting and are great for entertaining. The tarts can be made up to 3 weeks ahead (stored in tin). I always make the lemon filling and a couple of others to add variety. You can used canned pie filling if desired.