There are so many kind of carbonara recipes out there. You can also use your pasta of preference (fettucini, angel-hair, etc.) for this recipe. And if you like it to be more 'saucey', just add more double cream into it and you'll love it!
You need to keep the pan on low heat when you're adding the cream mixture in because you don't want the eggs to curdle (like a scramble egg). The sauce should be thick and smooth in consistency.
As you can see in the picture, I did add a few leaves of spinach into my carbonara when i feel like having them. So you can add spinach or also peas into this recipe if you want to have a well-balanced meal.