Melt butter in a large pot and add onion and garlic. Sauteed for about 5 minutes until onion in soft and semi translucent. Next add cauliflower and toss with onions. Cook for about 5 minutes.
Pour in the chicken stock and fit the pot with a lid. Simmer over medium heat for 20 minutes. The cauliflower should be softened. Add tomatoes with their juice and cook another 10 minutes.
Turn down the heat to low and add all remaining ingredients except croutons and Parmesan for topping. Heat for another 5 minutes stirring to blend all ingredients.
Using an emulsion blender(or a regular blender in batches) cream all ingredients so you have a silky, creamy soup without any chunks of cauliflower. Garnish with croutons and Parmesan. Enjoy!!
