Heat the oil in a large pot over medium heat. Once hot, add the onion and parsnip. Reduce the heat to low-medium and cook for 15 minutes, stirring occasionally, until very soft. Reduce the heat if the vegetables start to brown and crisp.
Stir in the apple and garlic and cook for another 3-4 minutes.
450 grams (1 pound) apples, 3 cloves garlic
Stir in the spices and cook for about a minute, then add the vegetable broth, beans, salt, and pepper.
1 teaspoon cumin, 1 teaspoon cinnamon, ½ teaspoon ground coriander, 1 litre (4 cups) vegetable broth, 400 grams (2 cups) white beans, 1 teaspoon sea salt, ½ teaspoon black pepper
Cover and increase the heat to bring the soup to a boil. Reduce the heat and simmer, covered, for 30 minutes.
Puree the soup until very smooth with an immersion blender or heat-safe standing blender. Season to taste and serve hot.
Notes
If you don't have an immersion blender (I highly recommend one) or heat-safe standing blender, you'll have to wait for the soup to cool before blending. Reheat the blended soup gently on the stove before serving.1 pound of parsnips is about 3 cups chopped, and 3-4 apples.