Horseradish Mashed Potatoes

Bahan-bahan (4 porsi)

• 3 pounds Yukon gold potatoes (cut into 1-inch chunks, or Russet potatoes)
• 4 cloves garlic
• 8 ounces cream cheese ( softened, cut into cubes)
• ⅓ cup salted butter (melted)
• ½ cup warm milk (or cream)
• ¼ cup prepared horseradish (or to taste)
• 1 g reen onion (thinly sliced)
• 1 tablespoon chopped fresh parsley
• salt and pepper to taste