Italian chef Ricardo Camanini built an award-winning reputation on this incredibly delicious spaghettoni recipe topped with butter and a surprising ingredient: brewer's yeast. The dish has such simple, luscious, and—thanks to brewer's yeast—funky, umami appeal that legendary French chef Alain Ducasse declared it the best dish ever. At Lido 84, his restaurant on Lake Garda in Northern Italy, Camanini oven-dries fresh cakes of yeast for hours, but the store-bought powdered version works just as well. Tossing the spaghettoni with the butter constantly at the end of cooking emulsifies the sauce. You'll want inactive brewer's yeast for this recipe. The version from Twinlab has a delicious, funky, umami flavor.