This incredibly simple but superbly delicious vanilla-spiked tart is very close to a custard, but made with strained yogurt. Originally made with "labneh" - which is a thick strained yogurt, we substituted a plain Greek strained yogurt. We dressed it up with fresh organic whipped cream and some fresh strawberries. It is lightly sweet, creamy and very satisfying! We used one goose egg in place of the 3 eggs, making it a bit richer. Another alternative is duck eggs, which also have a larger yolk than chicken eggs.