Meatball Soup (Supë me Pasha Qofte)

Ingredients

• 2 medium carrots
• 1 large potato
• ½ onion
• 2 cups chicken stock
• 4 cups water
• 1 garlic clove
• 2 egg yolks
• 1 tsp thyme
• ¼ cup lemon juice
• 2 tbsp butter
• 2 tsp corn starch
• 250 g ground meat
• ⅓ cup rice
• ½ red onion
• 1 tsp dry mint
• ¼ cup parsley
• 1 egg white
• 1 tsp salt
• ½ tsp pepper