Roast Chicken With Sorghum and Squash

Name: Roast Chicken With Sorghum and Squash
Ingredients: Kosher salt; 1 cup sorghum; 1/2 large butternut squash, peeled, cut into 1-inch pieces (about 2 cups); 6 tablespoons unsalted butter, cut into small pieces, divided; 4 bone-in chicken legs (thigh and drumstick; about 3 pounds total); 1 tablespoon olive oil; Freshly ground black pepper; 1/2 cup low-sodium chicken broth; 1 tablespoon pure maple syrup; 1 tablespoon (or more) sherry vinegar; 2 tablespoons fresh lemon juice; 1/2 cup coarsely chopped parsley; 1/2 cup pomegranate seeds