Peel and finely chop the onion. In a saucepan, heat the olive oil, then add the onion. Sauté for a few minutes, stirring occasionally.

Then add thoroughly rinsed lentils and cover everything with water in a 2:1 ratio (water:lentils). Mix and cook until soft, about 10-15 minutes on medium heat, stirring occasionally. If necessary, add a little water or drain the excess just before blending.

When the lentils are soft, blend everything with a hand blender. Taste and season with salt, pepper, chili, and curry to your liking. Mix well or blend again.

Serve on a plate.