3 tbsp  Unsalted Butter

4  Large Leeks , white and light green parts only, roughly chopped

3  Garlic Cloves , peeled and smashed

900 g  Yukon Gold Potatoes , peeled and roughly chopped into 0.5-inch pieces

7 cups  Chicken Broth

2  Bay Leaves

3  Sprigs Fresh Thyme

1 tsp  Salt

0.25 tsp  Ground Black Pepper

1 cups  Heavy Cream

Chives , finely chopped, for serving