Peel and dice the potatoes into 1 inch cubes. Cut the cauliflower into small florets. Add the cubed potatoes and cauliflower florets to the pot along with vegetable broth. Place a lid on top, turn tge heat to high and bring pot to a boil. Once boiling, reduce heat to medium-low and let simmer for about 20 minutes or until potatoes and cauliflower are extremely soft