Making Caramelized Onion and Potato Soup is straightforward. Follow these steps to create this comforting dish:

1. Caramelize the Onions: In a heavy-bottomed pot, heat olive oil and butter over medium heat. Add sliced onions, stirring occasionally. Cook for about 20-25 minutes or until the onions are deeply caramelized.

2. Add Garlic and Thyme: Once the onions are caramelized, stir in the minced garlic and thyme. Cook for an additional 2-3 minutes.

3. Add Broth and Potatoes: Pour in the broth and add the diced potatoes. Bring to a boil, then reduce to a simmer. Cook for about 20 minutes or until the potatoes are tender.

4. Blend the Soup: Using an immersion blender (or a regular blender in batches), blend the soup until smooth and creamy.

5. Finish with Cream: If desired, stir in heavy cream for a richer texture and flavor. Adjust seasoning with salt and pepper.

6. Serve: Ladle the soup into bowls, garnishing with fresh chives.

7. Enjoy: Sit back, savor each spoonful, and let the comforting flavors warm your heart.