For the roasted vegetables
01 -
2 large heads cauliflower, cut into florets, about 2 1/2 lb (1.1 kg)
02 -
1 whole garlic bulb
03 -
2 tablespoons olive oil, divided
04 -
1 teaspoon kosher salt, divided
05 -
1/2 teaspoon black pepper, divided
For the soup
06 -
2 tablespoons unsalted butter
07 -
1 medium yellow onion, diced
08 -
1 medium carrot, diced
09 -
2 celery ribs, diced
10 -
1 teaspoon dried thyme
11 -
4 cups (950 ml) vegetable broth
12 -
1 cup (240 ml) whole milk
13 -
1/2 cup (120 ml) heavy cream
14 -
2 cups (225 g) freshly shredded sharp cheddar cheese
15 -
2 tablespoons chopped fresh chives, for serving