Step: 1/5

Place the lentils in a pan, cover with cold water and bring to the boil. Add the curry powder, cover and cook for 6 minutes over a low heat.

Step: 2/5

Meanwhile, wash and dry the celery and peel off any tough out strips. Set the leaves aside.

Step: 3/5

Cut the celery into 5mm slices, add to the lentils, cover and cook for 3-4 minutes.

Step: 4/5

Wash the celery leaves, shake dry and chop roughly.

Step: 5/5

Season the lentil soup with salt and pepper. Garnish with yogurt and celery leaves and serve.