1 large roasting chicken (5 to 6 lbs), cut into 2 legs, 2 thighs, and 2 breast pieces, each with skin removed; back, neck, and wings hacked with a cleaver into 1 to 2 inch pieces to make stock
1 Tbsp olive oil
1 large onion, cut into large chunks
2 bay leaves
Salt
3 celery stalks, trimmed and cut into 1/2-inch pieces
4 medium carrots, peeled and cut into 1/2-inch pieces
6 boiling onions (smaller than regular onions, larger than pearl onions), peeled and halved
6 Tbsp unsalted butter, or chicken fat from the cooked chicken
6 Tbsp all-purpose flour
1 teaspoon dried thyme
2 Tbsp dry sherry or vermouth (optional)
1 Tbsp of heavy cream (optional)
3/4 cup frozen peas, thawed
1/4 cup minced fresh parsley leaves
Ground black or white pepper
2 cups cake flour (can sub all-purpose flour)
2 teaspoons baking powder
3/4 teaspoon salt
2 Tbsp butter, melted
3/4 cup milk
1/4 cup minced fresh herb leaves such as parsley, chives, and tarragon (optional)