This celeriac and leek soup is the perfect warming winter dish for your weekday lunches. It is extremely easy to make with a handful of ingredients and tastes light and fresh yet creamy. Prepare a batch and enjoy it throughout the week. Celeriac is perhaps one of the most underrated vegetables and it needs to be celebrated more. The season in the UK runs from September to April. It’s the perfect soup to make after a trip to a farmer’s market at the weekend, using fresh, organic produce, and a few ingredients goes a long way.