Follow these detailed steps to create a perfect Classic Carbonara:

Step 1: Prepare the Ingredients

1. Cook the Pasta: Fill a large pot with water, add a generous amount of salt, and bring to a boil. Add the spaghetti or your chosen pasta and cook until al dente, according to package instructions. Reserve about 1 cup of pasta water and then drain the pasta.
2. Prepare the Egg Mixture: In a mixing bowl, whisk together the 3 whole eggs and the additional yolk. Mix in the freshly grated Parmesan cheese and a generous amount of freshly ground black pepper. Set aside.

Step 2: Cook the Pancetta

3. Heat the Pancetta: In a large skillet over medium heat, add the pancetta. If you desire a hint of garlic, add the peeled garlic clove to the skillet for a subtle infusion of flavor. Cook the pancetta until crispy and golden brown, about 5-7 minutes. Remove the garlic clove, if used.
4. Add the Pasta: Add the cooked pasta to the skillet with the pancetta. Toss to combine, ensuring the pasta is well-coated with the pancetta and its rendered fat.

Step 3: Combine and Cook

5. Create the Sauce: Remove the skillet from the heat to prevent the eggs from scrambling. Quickly add the egg and cheese mixture to the pasta. Stir vigorously to combine, adding reserved pasta water a little at a time to achieve a silky consistency.
6. Adjust Seasoning: Taste and adjust the seasoning with additional black pepper and salt if necessary. The sauce should be creamy and fully coat the pasta.

Step 4: Serve and Enjoy

7. Plate the Carbonara: Divide the pasta among serving plates. Optionally, garnish with extra grated Parmesan and a sprinkle of black pepper.
8. Serve Immediately: Carbonara is best enjoyed immediately while it’s hot and creamy.