As the air turns crisp and leaves begin to fall, Express writer Sophie Law finds herself yearning for comfort food . Nothing screams autumn more than a large pot of hearty homemade soup bubbling away on the hob. While Sophie enjoys dabbling with various recipes , there's one straightforward dish that she whips up every week without fail: her four-ingredient lentil soup. With food prices being a hot topic currently, this is one of the reasons she returns to this recipe time and again. It's