Cocktails post-Taxman: Let me tell you how it will be….

  Whether you’re flush or flat after filling out 1040 forms, three L.A. bars are serving special themed cocktails  to mark Tax Return Day.  The Varnish: The master mixologists at the Varnish will be offering the Income Tax Cocktail ($12), which is basically a Bronx Cocktail: gin, sweet and dry vermouth, and orange juice.  The added…