Lightened-Up Carrot and Potato Soup with Kale Chips

Name: Lightened-Up Carrot and Potato Soup with Kale Chips
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 2 tablespoons butter; 1 tablespoon canola oil; 5 medium potatoes ( 4 cups or 660 grams); 2-3 carrots (sliced or cubed - 1 heaping cup or 180 grams); 1 yellow onion (chopped, 1 cup or 120 grams); 1 stalk celery (finely sliced, optional, 1/3 cup or 50 grams); 4 cloves garlic (minced, 8 grams); 4 cups vegetable stock (1 liter); 1 tsp each of smoked paprika, Mexican chili powder*, onion powder, chili flakes, salt and pepper; 1/4 cup heavy cream (60 milliliters); 3/4 cup milk (190 milliliters); 1/2 cup sour cream (125 milliliters, right before serving, optional); 1 teaspoon vinegar (optional, to taste); Toppings: kale chips (see below), black sesame seeds, chili flakes, sour cream); 1 bunch kale; 1 tablespoon olive oil; 1/2-1 teaspoon salt (if you like salty chips, try 1 teaspoon); 1/2 teaspoon each of garlic powder, onion powder, and smoked paprika; 1 teaspoon black sesame seeds (optional)