Garam Masala Chicken Pot Pie

Name: Garam Masala Chicken Pot Pie
Ingredients: 2 tablespoons olive oil, plus more for brushing; 4 boneless and skinless chicken thighs; Salt and freshly ground black pepper, plus 2 teaspoons salt; 2 cloves garlic, chopped; 2 shallots, chopped; 1 carrot, peeled and sliced; 2 tablespoons salted butter; 3 tablespoons all-purpose flour, plus more for dusting puff pastry; 3 cups chicken stock; 1 russet potato, peeled and cubed; 1/2 cup frozen peas, defrosted; 1 1/2 tablespoons garam masala, plus more for sprinkling; 2 sheets (1 pound package) frozen puff pastry, defrosted slightly; 2 tablespoons olive oil