Chicken Pot Pie with Buttermilk Biscuit Topping

Ingredients

• 4 strips of uncooked bacon, chopped
• 1 small onion, chopped
• 3/4 cup celery, chopped
• 1 cup carrots, chopped
• 2 cups potatoes, chopped
• 1 cup frozen corn
• 3 cups leftover roasted chicken (about 1/2 of a previously roasted 2 1/2 pound chicken)
• 2 cans condensed chicken broth
• 1 1/2 cups half and half cream
• 2 heaping tbsp flour
• 2 tbsp butter
• salt and pepper
• 2 cups all purpose flour
• 1 tbsp sugar
• 1 1/2 tsp baking powder
• 1/4 tsp baking soda
• 1/2 tsp salt
• 1/8 tsp cayenne
• 1/2 cup butter, cold
• 1 egg
• 1/2 cup sour cream
• 1/2 cup buttermilk