In a large pot, melt the 2 tbsp unsalted butter over medium heat.
2 tbsp unsalted butter
Add the chopped 4 medium white onions and 3 cloves garlic; chopped to the pot.
4 medium white onions, 3 cloves garlic; chopped
Sauté until the onions are translucent and the garlic is fragrant, about 5-7 minutes.
Add the 4 medium yukon gold potatoes to the pot. Pour in the 5 cups chicken broth and add the 1 bay leaf.
4 medium yukon gold potatoes, 5 cups chicken broth, 1 bay leaf
Bring the mixture to a boil, then reduce the heat to low and let it simmer until the potatoes are tender, approximately 20 minutes.
Once the potatoes are cooked, remove the bay leaf.
Use an immersion blender or transfer the soup to a blender in batches to puree until smooth.
Return the pureed soup to the pot over low heat. Stir in the 1 cup sour cream, 5 scallions, and ½ cup chives, until creamy and evenly combined.
1 cup sour cream, 5 scallions, ½ cup chives
Season with Salt and pepper to taste.
Salt and pepper
Allow the soup to simmer for an additional 10 minutes, allowing the flavors to meld.
Ladle the soup into bowls. Garnish with chopped Chives, Scallions, and, if desired, Sour cream and onion chips.
Chives, Scallions, Sour cream and onion chips