When a trattoria is christened with the name of a Saint and its culinary creations are divine, it may evolve into a sanctuary of sorts, attracting pilgrims from every corner of Italy and even from foreign lands. Trattoria San Giacomo, however, transcends this analogy; it embodies a genuine sacrament. Nestled in Bellagio, upon the Serbelloni steps, one frequently observes a congregation gathered outside the establishment, patiently awaiting their turn. Each holds an aperitif, resting on cushions generously provided by the host, either engrossed in congenial chatter or serenely appreciating the vista. If the external spectacle is such a delight, one can only envision the heavenly pleasures that await within.