• 2 white onions, thinly sliced
• 300 g cream cheese
• 1 cup sour cream
• ¼ cup Kewpie mayonnaise
• 2 teaspoons salt
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 teaspoon chilli flakes, adjust to taste
• ½ teaspoon freshly grated nutmeg
• 2 cups shredded cheese of choice (cheddar, havarti, provolone, mozzarella, or a mix)
• 500 g fresh spinach, or frozen, thawed and drained
• 400 g canned artichokes, drained and chopped
• White pepper, to taste
• Black pepper, to taste