Braised Beef Pie

Ingredients

• Filling

  • 1 onion, thinly sliced
  • 3 cloves garlic, chopped
  • 1/3 cup (75 ml) olive oil
  • 1 lb (454 g) beef flank steak or skirt steak, cut into ¼-inch (5 mm) thick strips
  • 3 tbsp (45 ml) tomato paste
  • ¾ cup (180 ml) red wine
  • ½ cup (125 ml) beef broth
  • 1 carrot, peeled and diced
  • 1 stalk celery, diced
  • 2 tsp cornstarch
  • 1 tbsp (15 ml) water
  • ½ lb (225 g) white mushrooms, sliced
  • ½ cup (75 g) frozen peas
  • Salt and pepper

• Pie Crust

  • 2 cups (280 g) unbleached all-purpose flour
  • ½ tsp salt
  • 1 cup (225 g) cold unsalted butter, cubed
  • ¼ cup (60 ml) ice water
  • 1 tbsp (15 ml) white vinegar or lemon juice
  • Milk, for brushing