Combine salt, flour, baking powder and soda, and cinnamon. Set aside. Beat eggs, add sugar gradually. Add remaining ingredients and blend. Spread in a greased jelly roll pan 10 1/2 x 15 1/2 inch or 2 greased 9 x 9 inch pans. Bake 30 to 40 minutes at 325 degrees. Frost and sprinkle with nuts if desired. Cut into bars.