Sara Jenkins' recipe for pasta carbonara calls for 4 cups cheese to 1 pound pasta. Can you verify that this is correct?

Good question -- Sara double-checked her notes and it should be 1 cup of each type of cheese—the recipe has been updated to reflect this!

That is quite a bit of cheese. The Carbonara recipe that I use calls for a cup of cheese and it turns out perfect every time.

That's a little nutty. There are several questions in the recipe comment section about the cheese that have gone unanswered so far.

Here is a version that I like:
http://www.seriouseats.com/recipes/2015/12/pasta-carbonara-sauce-recipe.html