I love soups made with root vegetables. In this soup, potatoes are the star. But to really develop nice flavor, I give credit to the onion. Onion is thinly sliced, pole-to-pole, into long strips, and then cooked in olive oil over very low heat for 30 minutes, slowly turning soft and golden. This method really brings forth excellent flavor, in my opinion. The remaining diced aromatics are then added to the onions and softened, with the heat brought up a bit and with more stirring on the chef's part. Later, to obtain a creamy soup without adding cream, an immersion blender is used to emulsify the soup a bit, but still leaving plenty of chunky veggies. Delicious!
1 large yellow onion, thinly sliced, pole-to-pole, into strips
1/2 to 3/4 cup chopped carrot
1/2 to 3/4 cup chopped celery
3 garlic cloves, finely minced
2 pounds Yukon Gold potatoes, peeled and diced
2 Bay Leaf
2-3 sprigs of Thyme
6 cups chicken stock
1-1/2 cup diced, cooked ham
Salt and Pepper
In a soup pot or Dutch oven, heat 2 Tbs olive oil over medium high heat. Add the onions and immediately lower the burner heat to its lowest setting. Sprinkle the onions with a pinch or two of salt. Stirring occasionally, slowly cook the onions until very soft and golden - but not burnt; about 30 minutes. Add the carrot and celery, increasing the heat slightly. Stir a bit more frequently to avoid burning the onions and cook for about 10 minutes. Add the garlic and cook for one minute, stirring constantly.
Add the potatoes and chicken stock to the pot. Bring to a boil, then reduce the heat and simmer for 15 minutes. The potatoes should have softened. Remove several cups of the soup from the pot and place into a mixing bowl: be careful to not scoop up any Bay Leaf or Thyme sprigs. Using an immersion blender, carefully blend the soup in the mixing bowl until it is creamy. Return the blended soup to the soup pot. Add the ham and continue to cook until ham is heated through. Adjust the seasoning with salt and pepper, as needed.