
4 ounces Swiss cheese, shredded (1 cup)
1⁄3 cup freshly grated Parmesan cheese
4 ounces fresh goat cheese, crumbled
1½ cups whole milk
1 cup heavy cream
2 pounds russet potatoes (about 6 medium)
2 tablespoons olive oil
2 teaspoons minced garlic
2 to 3 sprigs rosemary, 3 inches long (or 2 teaspoons dried rosemary, crushed)
½ teaspoon dried thyme, crushed
½ teaspoon sea salt
¼ teaspoon ground white pepper