Place the celery stalks in a large pan (you can chop in half if you wish but not totally necessary) and cover with boiling water. Bring to the boil, then turn the heat down and simmer for 15-20 minutes until the celery has changed colour and looks very well cooked. Turn the heat off.

Ladle all the celery into a blender and add some of the water and all of the milk (or use your stick blender in a jug/bowl). You will add any unused liquid after, but it's easier to blend cold liquid than hot! Pulse a few times, then process until it's as smooth as you can make it. Add any remaining liquid.

Rinse the pan you were using, then get a large fine sieve and a spatula or wooden spoon. Pour the soup mixture through the sieve (so the liquid goes back in the pan). Using your utensil, press all the moisture out of the celery fibres. Take your time. Using your utensil, press even more moisture out. Repeat. There is a lot of moisture in there and you want it all out. Do this stage carefully! The celery should end up as a ball of fibres in your sieve. Compost the ball of celery fibres.

Gently heat your soup and season to taste. You may find it tastes great just as it is! You might want to add a bit of salt, black pepper, or chilli. Add the nutritional yeast if using.

Serve in bowls with any toppings scattered over or served separately for your guests to add.

Enjoy!