Leek Soup with Oysters and Wholegrain Flatbreads

Ingredients

• 1-3/4 lb whole leeks
• 2 tbsp olive oil
• 300 g potatoes (unpeeled, roughly diced)
• 2 cups chicken stock
• 12 fresh oysters
• 2 tbsp snipped fresh chives
• to taste ground black pepper
• 2 tsp dry yeast
• 3/4 cup wholemeal plain flour
• 1/3 cup poppy seeds