One-Pan Umami Cauliflower Gratin – S'NOODS

Ingredients

• 2 tablespoons unsalted butter
• 3 cloves garlic, sliced or minced
• 1 medium yellow onion, sliced
• ½ teaspoon salt
• ½ teaspoon sugar
• 1 tablespoon miso
• 2 tablespoons cornstarch
• 1 ½ cups heavy cream
• ¼ teaspoon fresh black pepper
• ½ teaspoon freshly grated nutmeg
• 1 bag S’NOODS Spicy Miso Ramen, crushed and divided
• 1 ½ cups grated gruyere
• ¾ cup shredded mozarella cheese
• 1 head cauliflower (about 2-3 lbs), florets and stems cut into pieces
• ¼ cup grated Parmesan cheese
• Sliced scallions, for serving