A childhood favourite from my German heritage, watercress soup (Wasserkressesuppe) was something my mum used to make for us four perpetually hungry children. She would bring a huge tureen of soup to the table alongside fresh French bread and butter, and we' would devour the lot. Despite being made from very simple ingredients, it's surprisingly filling and incredibly nutritious. Watercress is often described as a superfood and is packed with vitamins A, C and K, along with an