Chicken with herbed cornmeal dumplings Recipe

Name: Chicken with herbed cornmeal dumplings Recipe
Ingredients: 1 (5-pound) chicken; Salt; Pepper; 3 tablespoons olive oil; 2 cups diced onion, cut into small (1/4-inch) dice (about 1 large onion); 1 cup diced carrots, trimmed (peeling optional) and cut into small (1/4-inch) dice (about 2 medium carrots); 1 cup diced celery, trimmed and cut into small (1/4-inch) dice; 1/4 cup thinly sliced leek, cleaned and sliced crosswise into 1/8-inch strips (white and light green only, about 1/2 of 1 medium leek); 1/2 cup dry white wine; 2 cloves garlic, smashed; 3 sprigs parsley; 2 sprigs thyme; 1 bay leaf; 10 cups water, plus 1/3 cup boiling water, divided; 1/2 cup cornmeal; 1 cup (4.25 ounces) flour; 2 teaspoons baking powder; 1 egg; 1/4 cup milk, divided; 1 1/2 teaspoons lemon juice; 2 tablespoons chopped fresh herbs (such as tarragon, chives, thyme and parsley)