Broccoli & Leek Soup

Ingredients

• Olive oil
• leek, pale section only, halved lengthways, thinly sliced
• garlic cloves, crushed
• large sweet potato, peeled, finely chopped
• water
• vegetable stock cube, crumbled
• broccoli, cut into florets
• fresh parsley leaves
• fresh basil leaves
• grass fed sheeps yogurt