INGREDIENTS
1 1/2
large heads cauliflower
6 tbsp
butter, plus more for buttering dish
1/2 cup
heavy cream
6 tbsp
butter
3 cloves
garlic, minced
2 cups
grated white cheddar
1 cup
freshly grated Parmesan
1 tbsp
fresh thyme leaves
kosher salt
Freshly ground black pepper