Easy Hershey Fudge
["4 1/2 c. sugar", "1 can evaporated milk", "1 1/2 lb. margarine", "2 large bars Hershey chocolate"]
["Cook the first 3 ingredients until boiling; boil for 5 minutes.", "Remove from heat; let cool for 10 seconds.", "Add the chocolate bars.", "Stir until mixed.", "Pour into a 10 x 13-inch greased glass container."]
["sugar", "milk", "margarine", "chocolate"]