Prep and wash leeks: Start by giving the leek a good wash. Then cut off the root end and the dark green tops and cut the remaining white and light green part into thin coins. Run them under cold water using a strainer to remove any dirt. Then rinse and/or pat dry.
2 leeks
Sauté onion, garlic & leeks: In a large pot heat the olive oil over medium heat. Add onion, garlic and chopped leeks and sauté until soft and caramelized (about 3-5 minutes).
2 tsp olive oil, 1 small onion, 3 fresh garlic cloves
Add potatoes and spices: Add the cubed potatoes and spices and cook for 2 more minutes to release their flavors.
1 tsp thyme, 1 tsp marjoram, 1.5 lb pounds white potatoes (Russet or Yukon Gold)
Pour in broth: Add the veggie broth and salt. The liquid should just cover the potatoes.
5 ½ cups vegetable stock, 1 tsp salt + more to taste
Simmer: Bring the soup to a boil. Then reduce heat and let simmer on low covered with a lid for 15-20 minutes.
Blend: Use an immersion blender and blend. If you prefer a chunky soup, only blend partially. For a smooth texture, blend more.
Taste and adjust: Taste and adjust spices as needed (I usually add another teaspoon of salt and top with black pepper). Serve with toppings of choice and enjoy!