Try this Spezzatino alla Fiorentina recipe, or contribute your own.
Pork cheek requires a minimum braising window of one hour to completely dissolve its dense collagen matrix into unctuous gelatin. Searing the meat cubes over medium-high heat initiates the Maillard reaction, developing complex savory compounds on the surface of the protein before any liquid enters the pot. When the red wine hits the hot pan, its volatile acids and alcohol deglaze the browned fond stuck to the bottom, dissolving caramelized sugars and introducing tart fruit notes that cut through the richness of the pork. Although quick-cooking cuts become tough and stringy when subjected to prolonged heat, tough cuts rich in connective tissue actually soften because sustained temperatures between 85 and 95 degrees Celsius systematically hydrolyze tough collagen into soluble gelatin, transforming the entire dish's mouthfeel from chewy to velvety. Crushing the canned peeled tomatoes releases glutamic acid, which combines with the natural umami of the pork to amplify savory perception on the palate. Starch molecules from the yellow-fleshed potatoes slowly leach into the braising liquid as they simmer alongside the meat, thickening the sauce naturally without requiring external thickening agents like flour or cornstarch. Letting the finished stew sit overnight allows the suspended flavor compounds to fully penetrate the cellular structure of both the potatoes and the meat, producing a more unified flavor profile upon reheating.