First, melt butter in a pan.
Chop the celery and garlic and put them into it.
Fry garlic and celery for 2 to 3 minutes on a low flame. Chop the potatoes and add them to it for some time. Then add some salt, pepper, and water to it.
Cover the pan and wait for the potatoes to be cooked entirely. Once they are done, wait for the mixture to cool down.
Once the soup is warm, blend the soup using an immersion blender until it becomes smooth. You can also use a jar of Blender instead. Once it is blended properly, gently heat the soup. If you like a thin soup or your soup appears thick, you can add some water or veg stock to it. Well, this step is to maintain the consistency of the soup.
Once the soup is adequately heated, add some cream and Sprinkle nutmeg powder into it. Please turn off the flame and stir it well.
You can check the seasoning and add some black pepper salt according to your taste. You can also garnish the soup with parsley and bread croutons before serving.