Cannabis is becoming a cooking ingredient in its own right – like a grown-up pot brownie – and chefs are creating elaborate cannabis tasting menus at private dinners. For most Americans, eating marijuana has long been about function over flavor. Think of the dish that inevitably comes to mind: pot brownies. Less a delicious dessert than a discreet delivery mechanism for THC (the drug’s primary psychoactive ingredient), brownies can be smuggled to places where cannabis…