Saute the onion and garlic in a large pot with the olive oil until soft.
Add the celery and carrots and cook gently for another few minutes.
Add the cumin and split peas, then pour in the stock. Bring to the boil, then reduce to a gentle simmer and leave to cook for 50 mins to an hour until creamy, stirring occasionally and adding more water if you need to.
Whizz until smooth with a stick blender.
Season with salt and pepper, then serve with crusty bread.
Enjoy!
