Flossie Cantrell'S Chocolate Pie
["1 c. sugar", "1 c. milk", "2 Tbsp. flour", "2 Tbsp. cocoa", "3 eggs, separated", "1 Tbsp. butter", "1 tsp. vanilla", "1/8 tsp. salt"]
["Mix dry ingredients in heavy pan.", "Stir until well blended. Add egg yolks and milk.", "Place over low heat and cook until very thick.", "Add butter and vanilla and put in cooked pie shell.", "Beat egg whites stiff, adding 6 tablespoons sugar gradually.", "Put on pie and brown."]
["sugar", "milk", "flour", "cocoa", "eggs", "butter", "vanilla", "salt"]