It is colossally difficult to run a profitable restaurant, much less build a brand successful enough to open a second, a third, a 20th location. Which is to say, if you have your sights set on becoming the next Ray Kroc or Dave Thomas, the odds are overwhelmingly not in your favor. It makes the success of Shake Shack,…
Source: LifeHacker – How to make Shake Shack’s ShackSauce at home