What is the recipe for 2x YT?

2x YT medium, per liter 16 g tryptone 10 g yeast extract 5 g NaCl Media Preparation and Bacteriological Tools. Edited by: Fred M. Ausubel, Roger Brent, Robert E. Kingston, David D. Moore, J.G. Seidman, John A. Smith, Kevin Struhl Current Protocols in Molecular Biology (1994), Section 1.1.3.