Ham and Potato Casserole

Bahan-bahan (8 porsi)

• 3 Russet potatoes (peeled and cut into ¼-inch cubes (about 1 ½ pounds))
• 2 tablespoons unsalted butter (at room temperature)
• 4 ounces cream cheese (at room temperature)
• ¼ cup whole milk (at room temperature)
• 3 g arlic cloves (grated on a Microplane or very finely minced (about 1 tablespoon))
• 2 g reen onions (thinly sliced)
• ½ teaspoon onion powder
• ½ teaspoon dried parsley
• 1 ½ teaspoons kosher salt
• ¼ teaspoon ground black pepper
• ½ cup shredded sharp white cheddar cheese
• ½ cup shredded parmesan cheese
• 2 cups diced cooked ham (about 1.25 pounds (¼-inch diced))