Carrot Lime Soup

Ingredients

• 2 small sweet potatoes, chopped into cubes
• 7 medium carrots, chopped roughly
• 1/2 large onion, chopped
• 2 celery ribs, chopped
• 1 inch fresh ginger, minced
• 2 tablespoons oil
• 4 cups vegetable stock or 4 cups chicken stock
• 1 lime, juice of
• salt and pepper, to taste