Steak and Kidney Pie: Don't Be Afraid to Make This Classic Dish

Name: Steak and Kidney Pie: Don't Be Afraid to Make This Classic Dish
Cuisine: European, British
Ingredients: 2 1/4 cups/200 grams all-purpose plain flour; Pinch salt; 4 ounces/110 grams butter (cubed or an equal mix of butter and lard); 2 to 3 tablespoons water (cold); 1/3 cup/25 grams all-purpose flour; Salt (to taste); Black pepper (to taste); 1 1/2 pounds/700 grams beef chuck steak (or other tough beef, cut into 1-inch/2.5-cm cubes); 1/2 pound/250 grams beef kidney (cleaned and chopped into 1-inch/2.5-cm cubes); 2 tablespoons/25 grams butter; 1 tablespoon vegetable oil; 2 large onions (thinly sliced); 2 carrots (cut into 1-inch/2.5-cm cubes); 3 1/2 cups/850 milliliters beef stock (hot); 1 large egg (beaten for glazing)