Bring heavily salted water to boil and throw in pasta

Add sliced pancetta/bacon to cold pan on medium heat until enough fat is rendered

Add optional crushed garlic. If your pancetta/bacon isn’t cured, season with pepper

Mix eggs with parmesan cheese in a separate cup. Season mix with salt + pepper

When pasta is ready (al dente), turn off all heat and add pasta to pancetta/bacon pan, along with some pasta water. Mix to emulsify.

When pasta has stopped sizzling, add egg + cheese mix and stir until uniform.

Add salt/pepper/cheese to taste