In a large bowl, whisk together the flour, baking powder, sugar, garlic powder, onion powder, and salt until combined.
2 cups (260 g) all purpose flour, 1 Tablespoon baking powder, 1 Tablespoon sugar, 2 teaspoons garlic powder, 1 teaspoon onion powder, 1 teaspoon Morton kosher salt*
Using a pastry cutter, cut the butter into the dry ingredients until it is in pea-sized pieces.
1 stick (113 g or 8 Tablespoons) cold unsalted butter, cubed
Stir in the milk and cheese until the dough comes together, and all of the flour is absorbed. Place the bowl of dough in the fridge while you prepare the filling.
1 cup (237 ml) whole milk or buttermilk, 6 ounces (1 1/2 cups) extra sharp cheddar cheese, shredded
Preheat the oven to 400 degrees. In a 3.5 quart shallow dutch oven or extra-large oven-safe skillet, sauté the bacon over medium low heat, until most of the fat has rendered and the bacon is brown. Do not drain the grease or wipe out the pan.
4 slices bacon, diced
Add the butter and stir until melted. Add the carrots, celery, and onion. Increase the heat to medium and sauté for about 10-15 minutes or until the vegetables have softened.
4 Tablespoons unsalted butter, 1 1/2 cups EACH sliced carrots & celery, 1 medium yellow onion, diced
Add the shallot and garlic. Sauté for 2-3 minutes or until fragrant.
1 shallot, diced, 8-10 cloves garlic, minced
Add the salt, thyme, rosemary, sage, pepper, and turmeric. Sauté for 2 minutes.
1 teaspoon EACH dried thyme, rosemary, & sage, 1/4 teaspoon turmeric, fresh cracked black pepper, 1 teaspoon Morton kosher salt*
Deglaze the pan with the wine, scraping any brown bits off the bottom of the pan. Reduce until the wine has evaporated.
1/2 cup dry white wine
Add the flour and cook for 2-3 minutes. The mixture will clump and turn into a paste. Reduce the heat to medium low.
1/2 scant cup all purpose flour
While stirring continuously, pour in the chicken broth slowly until completely combined.
2 1/2 cups chicken stock or broth
Repeat this process with the milk until it is completely combined as well.
1 cup milk
Stir in the frozen peas and the shredded chicken. Bring to a light boil and then immediately turn off the heat.
1 heaping cup frozen peas, 3 1/2 cups shredded rotisserie chicken breast*
Smooth the mixture into an even layer. (If the pan is not oven-safe, transfer to a large 9 x 13 inch baking dish.) Place the skillet/dish on a baking sheet if it is filled to the top, as it can bubble over while baking.
Using a 4 Tablespoon cookie scoop or measuring cup, drop about 15 biscuits evenly across the surface of the filling. They should cover most of the surface. Sprinkle each biscuit with flaky salt.
flaky salt, for topping
Bake for 15-20 minutes, or until the biscuits are golden. Let the pot pie rest for about 10 minutes before serving.