01 - In a medium bowl, thoroughly whisk together eggs, grated Parmesan cheese, heavy cream, and black pepper until smooth. Set aside.
02 - Using a large skillet over medium heat, cook pancetta or bacon until golden and lightly crisped, approximately 4 to 5 minutes. Add minced garlic and sauté just until fragrant, about 30 seconds. Take skillet off the heat.
03 - In a separate pot, bring chicken or vegetable broth to a gentle simmer. Add instant ramen noodles and cook according to package instructions until just tender.
04 - Reserve 1/4 cup hot broth, then drain noodles and add directly to skillet with pancetta and garlic. Toss together to blend flavors.
05 - With the skillet off the heat, gradually pour in the egg–Parmesan mixture over hot noodles. Quickly and continuously toss noodles, adding reserved broth as needed to achieve a creamy, silky sauce.
06 - Season with extra salt and freshly ground black pepper to taste.
07 - Divide the noodles among serving bowls. Top each with sliced green onions, additional Parmesan cheese, and chopped parsley if desired. Serve immediately.