1. In a soup pot, put oil and onion and stir until onion is tender. When onion is ready add flour and a few times more stir.
2. Add lentils, carrots and potatos; stir. After add bouillon cubes, add water and bring to a boil. And cook it until carrots and potatos are crushed.
3. After it cooked add salt, black pepper and crushed with blender.
*Lemon can be added if desired.