Cook spaghetti in plenty of boiling salted water for about 10 minutes, drain. In the meantime cut bacon into fine cubes. Whisk eggs and cream. Season with salt and pepper. Stir in parmesan. Heat oil in a large pan.
Skip the bacon. Add spaghetti and toss briefly in the bacon fat. Pour beaten eggs over it and mix with the spaghetti. (The sauce should stay creamy). Serve the noodles in portions. Serve garnished with chopped parsley and parsley leaves