Creamy Vegan Cauliflower Soup

Ingredients
1 cauliflower chopped (do not discard the thick stem , chop them and use for the soup)
3-4 garlic pods coarsely chopped
1 large onion coarsely chopped
750ml vegetable stock
1/4 tsp salt
1/4 tsp black pepper
1 tsp oil

Method
Heat oil in a saucepan , add chopped onions and garlic . Saute them for 1 min or till they start turning golden. Now add chopped cauliflower , salt. Cover and cook till they are tender. Now add stock. Bring to boil and simmer and cook for 5 mins. Aloow it to cool for atleast 1/2 hour and then blend it to a smooth puree. Again boil the soup and sprinkle black pepper powder while serving.