American foodie blogger and cook Desarae Legros didn’t believe her British friends when they warned her over how spicy English mustard was – and as she thickly applied a layer to her sandwich, it left her eyes wateringAmerican foodie blogger and cook Desarae Legros didn’t believe her British friends when they warned her over how spicy English mustard was – and as she thickly applied a layer to her sandwich, it left her eyes watering