A copy of the recipe, signed by Sanders, is stored within a vault at KFC's
Louisville headquarters, along with 11 separate vials that each contain one of the ingredients. KFC employs two different firms, Griffith Laboratories and
McCormick & Company, to formulate the blend; to maintain secrecy, each firm is given a different half of the recipe. Once the Griffith portion has been formulated, it is sent to McCormick and combined with the remaining ingredients there. In 1983,
William Poundstone conducted laboratory research into the coating mix, as described in his book
Big Secrets, and claimed that a sample he examined contained only
flour,
salt,
monosodium glutamate and
black pepper. KFC maintains that it still adheres to Sanders' original 1940 recipe. In
Todd Wilbur's television program
Top Secret Recipe, Sanders's former secretary, Shirley Topmiller, revealed that Sanders learned from his mother that
sage and
savory are good seasonings for chicken. Also, Winston Shelton, a former friend of Sanders, said that the secret recipe contains
Tellicherry black pepper. Sanders recommended the Marion-Kay seasoning to franchisees over the corporate version, as he believed the latter had been made inferior by the corporation's inattention.
Tribune staffers conducted a cooking test of this recipe, which took several attempts to get right. They had to determine whether the "Ts" meant
tablespoons or
teaspoons. After some trial and error, they decided the chicken should be soaked in
buttermilk and coated once in the breading mixture, then fried in oil at in a pressure fryer until golden brown. As a pressure fryer was too big, a deep fryer was used alternatively as a substitute. They also claimed that, with the addition of
MSG as a flavor enhancer, they could produce fried chicken which tasted "indistinguishable" from fried chicken that they had purchased at KFC. The recipe found by Joe Ledington reads as follows: While Ledington expressed uncertainty that the recipe was the Original Recipe, he had a hand in mixing the Original Recipe for Colonel Sanders when he was a young boy, and recalled that white pepper was a principal ingredient. ==References==