Greens with Spiced Butter and Fresh Ricotta

Name: Greens with Spiced Butter and Fresh Ricotta
Ingredients: 4 cups (1 quart) whole milk, preferably not homogenized; 1 1/2 teaspoons salt; 1 1/2 tablespoons white distilled vinegar or rice wine vinegar; 6 tablespoons butter; 2 teaspoons whole black peppercorns, plus 1/4 teaspoon freshly ground; 1/2 teaspoon cumin; 4 whole cloves; 3 dried bay leaves; 3 thin slices fresh ginger root, plus 2 tablespoons minced; 1/2 stick soft-stick cinnamon, crumbled; 2 bunches collard greens, leaves stripped from the stems and cut into 1-inch pieces (12 cups chopped)