Udon Pork Belly Carbonara

Name: Udon Pork Belly Carbonara
Ingredients: 1 pound boneless skinless pork belly (cut into 1 inch cubes); 1 teaspoon salt; 1/2 tespoon garlic powder; 1/2 teaspoon onion powder; 1 teaspoon smoked paprika; 1 tablespoon hot sauce; 1 tablespoon Worcestershire; 2 tablespoons cider vinegar; 1 tablespoon olive oil; 12 ounces precooked and frozen udon noodles ((3 servings)); 2 scallions (sliced, plus more for garnish); 1 teaspoon fresh cracked black pepper (plus more for garnish); 1 cup grated pecorino romano cheese; 1 egg; 3 egg yolks