6 large beef short ribs, about 14 to 16 ounces each (if ribs are tinier, buy by weight, not number)
1 tablespoon plus 1 teaspoon thyme leaves, and 4 whole sprigs thyme
1 tablespoon freshly cracked black pepper
3 dozen small pearl onions
1/2 cup extra-virgin olive oil
1 cup diced onion
1/3 cup diced carrot
1/3 cup diced celery
2 bay leaves
2 tablespoons balsamic vinegar
1 1/2 cups port
2 1/2 cups hearty red wine
6 cups beef or veal stock
4 sprigs flat-leaf parsley
2 bunches Swiss chard, cleaned, center ribs removed
Kosher salt and freshly ground black pepper