Pea And Lettuce Soup

Ingredients

• 30 g unsalted butter (I use reduced salt)
• 1 large onion, diced
• 3 cups chicken stock (I use water or vegetable stock)
• 1 kg baby peas (I use frozen and add them after the lettuce has wilted)
• 1 head romaine lettuce
• 1 cup milk (I use rice milk)
• 90 ml cream (I use natural yoghurt)
• of fresh mint (I cook this with the lettuce)
• salt and pepper