Creamy German Potato Soup - Kartoffelsuppe Recipe

Heat vegetable oil in large pot over medium heat; cook and stir onions carrots and celeriac until beginning to soften about 5 minutes. Stir in potatoes and vegetable stock. Simmer until potatoes are tender 15 to 20 minutes. Add parsley and blend potato mixture with a stick blender until soup is smooth. Stir half-and-half salt black pepper and cumin into soup.

Ladle soup in bowls and garnish with tomatoes and hot dogs.