5 c. sugar
1 (12 oz.) can Pet milk
1 stick butter
3 tbsp. cocoa
1 c. walnuts (optional)

Mix the cocoa and sugar in a pan. Add the can of milk. Place on stove over medium heat. When mixture gets warm, add stick of butter. Bring to a boil; stir continuously while boiling for 8 minutes. Run about 3 inches of cold water in sink. Set pan of chocolate in water. Stir until chocolate begins to harden. Add nuts, if desired. Pour into buttered Pyrex dish. Refrigerate 3 to 4 hours or until firm. Cut into squares and serve.