Pai Pot Ayam dengan Biskuit

Bahan-bahan (6 porsi)

• 2 cups flour
• 1 tablespoon baking powder
• 1 tablespoon sugar
• 1/2 teaspoon kosher salt
• 6 tablespoons very cold salted butter
• 3/4 cup whole milk
• 4 tablespoons salted butter
• a few sprigs of thyme
• 4 shallots, minced (about 1/2 cup)
• 4 cloves garlic, minced
• 4 carrots, peeled and sliced thinly (about 2 1/2 cups)
• 4 celery stalks, chopped (about 1 cup)
• 2 teaspoons coarse kosher salt, divided
• 1/3 cup flour
• splash of dry white wine (about 1/2 cup, sub chicken broth)
• 2 cups chicken broth
• 2 cups whole milk
• 1/2 cup heavy cream (sub with whole milk if you want)
• 4 cups shredded chicken (I use a rotisserie chicken)
• one 10-ounce bag of frozen peas
• tiny little squeeze of lemon juice