Wash the carrot and the potato. Peel them and cut them into pieces. In a pan add butter.
Add garlic cloves and the cumin powder to it. Let it sputter for a while.
After a while add the cut potatoes and carrot and sauté them for a while. After 5 minutes add the vegetable/chicken stock along with the salt.
Simmer this until the veggies are tender. Allow this to cool down.
Then transfer all the contents to a food processor. Transfer the soup to a bowl and serve with a dollop of butter.