Chicken Pot Pie

INGREDIENTS

• Kosher salt
• 3 cups all-purpose flour
• 3 tablespoons olive oil
• 1/2 to 2/3 cup ice water
• 1/2 cup minced fresh parsley leaves
• Freshly ground black pepper
• Flaked sea salt and cracked black pepper
• 1 (10-ounce) package frozen peas (2 cups)
• 1/2 cup vegetable shortening
• 1 egg beaten with 1 tablespoon water, for egg wash
• 1/4 pound cold unsalted butter, diced
• 2 cups yellow onions, chopped (2 onions)
• 3 whole (6 split) chicken breasts, bone-in, skin-on
• 5 cups chicken stock, preferably homemade
• 1/4 cup heavy cream
• 2 cups medium-diced carrots, blanched for 2 minutes
• 12 tablespoons (1 1/2 sticks) unsalted butter
• 1 1/2 cups frozen small whole onions
• 2 chicken bouillon cubes
• 1 1/2 teaspoons kosher salt
• 1 teaspoon baking powder
• 3/4 cup all-purpose flour