This week, we’re sharing a recipe for Portuguese pork belly from Fork & Vine Social in Decatur. The restaurant, which opened earlier this spring on West College Avenue, explores flavor influences from around the world on its menu. For example, the roots for Fork & Vine Social’s pork belly dish can be traced to Portugal’s 450-year presence in Goa, India. While pork belly is sold at the grocery store, you may prefer to source it from a local butc…