By Dave Cathey Food Editor dcathey@oklahoman.comWith Oklahoma City chefs planning a potluck to benefit the Homeless Alliance, I was inspired to make Waldorf salad. The simplicity of the classic fruit salad inspired no shortage of ideas for variation. What, according to legend, maitre d' Oscar Tschirky conceived shortly before his place of employment, The Waldorf Hotel, merged with its neighbor The Astoria in 1897 was a simple mixture of apples, celery and mayonnaise to serve over hearts of romaine lettuce. In his 1896 tome “The Cookbook, By Oscar of the Waldorf,” his recipe did not contain nuts.Read more on NewsOK.com