Combine water and bouillon in a heat proof container (I use my glass measuring cup). Heat the beef broth in microwave 1 minute at a time, until it is steaming hot. Melt butter in a medium saucepan over medium heat, add flour and onion powder and whisk together. Allow to cook for 1 minute, whisking occasionally (this helps cook out the ‘floury’ taste). Add beef broth to flour mixture and whisk. Bring to boil, reduce to simmer for 1 minute. Serve and enjoy! http://www.theslowroasteditalian.com/2012/07/5-minute-5-ingredient-5-star-homemade.html