Nut lovers will adore this handmade tart—a mosaic of toasted nuts mixed with a light handmade caramel, set in a buttery, flaky rectangular tart shell. From Tatte Fine Cookies & Cakes a Boston-area artisanal bakery, it includes generous quantities of whole nuts, from cashews and walnuts to filberts, pecans and pistachios. Lightly sweet and satisfyingly crunchy, it's the perfect finishing touch to a holiday meal.