The recipe for the delicious, tiny truffle-cream sandwiches at atmospheric old Procacci is a guarded secret but, oh boy, are they good, especially when accompanied by a glass of prosecco. Smart Florentine ladies-who-shop flock here for a pit stop between purchases, but it’s also popular for an early-evening aperitivo. Procacci is additionally one of the few places to buy just-harvested truffles in Florence: look out for them in November and December. Heap truffle shavings over fresh, buttered taglierini pasta or a simple scrambled egg—after only one bite, you’ll understand the attraction to these precious, musty-smelling delicacies.