Chicken Pot Pie | Food Stuff

Ingredients

• 3 carrots, peeled and sliced 1/4-inch thick
• 3 cups homemade chicken stock or reduced-fat low-sodium chicken broth, warmed
• 2 cups diced cooked chicken meat
• Coarse salt and freshly ground black pepper
• 1/3 cup all-purpose flour
• 1 1/4 cups all-purpose flour, plus more for rolling
• 1 tablespoon fresh tarragon leaves, chopped
• 1 clove garlic, finely chopped
• 3 to 8 tablespoons ice water
• 8 ounces mushrooms, sliced
• 1 tablespoon olive oil
• 1 onion, chopped
• 1/2 teaspoon fine sea salt
• 1/4 cup solid vegetable shortening, chilled and cut into pieces
• 4 tablespoons (1/2 stick) unsalted butter, chilled and cut into pieces
• 1 pound Yukon gold potatoes, unpeeled and cut into 1/2-inch cubes