Follow these straightforward steps to create your Cajun Potato Soup:

1. Sauté Vegetables: In a large pot, heat the olive oil over medium heat. Add the chopped onion and garlic, cooking until the onion is translucent.
2. Add Potatoes: Stir in the diced potatoes and cook for a few minutes, allowing them to absorb the flavors.
3. Add Broth: Pour in the vegetable broth and bring the mixture to a boil. Reduce the heat and let it simmer for about 20 minutes or until the potatoes are tender.
4. Blend the Soup: Use an immersion blender to puree the soup until smooth. If you prefer a chunkier texture, blend only half of the soup.
5. Add Cream and Seasoning: Stir in the heavy cream, Cajun seasoning, salt, and black pepper. Mix until well combined and allow to heat through for another 5 minutes.
6. Adjust Seasoning: Taste and adjust seasoning if necessary, adding more salt or Cajun seasoning according to your preference.
7. Serve: Ladle the soup into bowls and top with sliced green onions and any other desired toppings like crumbled bacon or shredded cheese.