I have never thought of this combination of cauliflower soup with potato. Once my friend Sangeeta asked me to guess a picture of soup what it is. And it was cauliflower potato soup. I referred this recipe from vegetrian about site, but the recipe was vegan. I tried a simpler way and it turned out to be rich and tasty. I loved the colour of the soup mainly, it something that makes it rich in look. Very simple and easy to try for this winter. Wholesome too for dinner.
Potato adds such a nice richness and thickness to the soup. Season with salt and pepper as needed.