Susan’s Carrot Soup with Ginger

1 medium onion, chopped 1 tablespoon (15 mL) olive oil 8 good-size carrots, peeled and sliced into 1/2-inch (1 cm) coins 1 medium potato, cubed 1 to 2 tablespoons (15 to 30 mL) freshly grated ginger 5 cups (1.25 L) vegetable broth, chicken broth or water Salt and freshly ground white pepper to taste In [...]