Spaghetti With Egg, Onion, and Bacon - Lidia

Ingredients

• kosher salt
• 1 pound spaghetti
• 6 ounces bacon, chopped
• Extra-virgin olive oil, if needed
• 1 small onion, chopped (about 1 cup)
• 2 large egg yolks
• 1⁄3 cup parsley, chopped
• 1 teaspoon freshly ground black pepper
• 1 cup Grana Padano cheese, grated