Egg white recipe and rich shortcrust pastry tips

Ingredients

• 400 g sausage meat
• 250 g beef mince
• 1 onion
• 1 carrot
• 1 small stalk celery
• 1 tablespoon olive oil
• salt
• pepper
• 2 egg whites (or one whole egg)
• 3/4 cup packaged bread crumbs
• 240 g '00' flour for preference, otherwise regular plain flour will work
• 60 g butter, cold and cut into small dice
• 60 g lard, cold and cut into small dice
• 2 egg yolk
• 2 teaspoons yoghurt or one of either creme fraiche, sour cream, orange juice, lemon juice