Turkey Apple Pot Pie with Cheddar Biscuit Crust - SippitySup

Ingredients

• 1 onion (roughly chopped)
• 2 carrots (peeled and cut into ½‑inch pieces)
• 2 stalks celery (cut into ½‑inch pieces)
• 2 parsnips (peeled cut into ½‑inch pieces)
• 2 sweet-tart apples (such as granny smith or jonathan, cored and cut into ½‑inch pieces)
• 1 teaspoon thyme leaves
• 3 tablespoons unsalted butter
• ½ teaspoon kosher salt (or more to taste)
• ¼ cup flour
• 4 cups roast turkey (meat, cut into ½‑inch pieces)
• 2 cups all-purpose flour
• 2 teaspoons baking powder
• 1 tablespoon baking soda
• 3½ cup chicken stock
• ¼ teaspoon freshly ground black pepper (or to taste)
• 1½ cup coarsely grated extra-sharp cheddar
• 6 tablespoons cold unsalted butter ( cut into ½‑inch pieces)
• 2 tablespoons vegetable shortning
• 1¼ cup buttermilk