Peel the vegetables and cut them into small even sized chunks.
Add to a large pot with the stock.
Top up with up to 2 cups of water to ensure the vegetables are covered with liquid by about an inch.
Bring to a boil, then reduce the heat and simmer for 35-40 minutes until the vegetables are cooked through and tender.
Use a stick blender to puree the soup until very smooth.
Serve hot, garnished with cream or sour cream and a sprinkle of sumac or black pepper.
Notes
While I prefer to use chicken stock, you can of course make this a completely vegetarian recipe by using a good quality vegetable stock instead.
Be sure to use a stick blender with a metallic shaft to puree the soup - a plastic one may not handle the heat. If you don't have a stick blender, you can transfer the soup in batches to a food processor and process until smooth. Be very careful though as it will be incredibly hot!
Recipe by The Fare Sage at https://www.thefaresage.com/5-ingredient-vegetable-soup/