Toast walnuts on cookie sheet for about 15 minutes in a 350 degree oven. Remove when toasted well. In a very large saucepan add the sugar, cinnamon, water and salt and cook until it reaches the soft ball stage (240 degrees). Add 1 teaspoon vanilla and toasted walnuts. Stir until well coated and mixture looks creamy. Spread on cookie sheet. Separate as they cool.