How to make pasta carbonara at home

Ingredients 1 tablespoon extra virgin olive oil or unsalted butter 1/2 pound pancetta or thick cut bacon, diced 1 to 2 garlic cloves, minced, about 1 teaspoon (optional) 3 to 4 whole eggs 1 cup grated Parmesan or pecorino cheese 1 pound spaghetti (or bucatini or fettuccine) Kosher salt and fr