Homemade chicken soup with semolina dumplings

Ingredients

• 2 pieces of bone-in chicken (the back or two leg quarters, if you like cooked meat)
• 3-4 carrots
• 1 parsley root
• 1 celery root
• Parsley leaves, salt and pepper
• 1 large egg
• A pinch of salt
• 1 tablespoon oil (I prefer olive oil)
• About 75 g Franck wheat semolina