4 1/2 cups white sugar
13 oz. can evaporated milk
2 sticks butter
2 12-oz. packages chocolate chips
3 Tablespoons vanilla
Mix sugar and milk in big pan and heat until rolling boil. Boil 6 minutes, stirring constantly. After 6 minutes take off heat and add butter and chocolate chips. Stir until well blended and add vanilla. Pour into greased 9 x 13-inch pan. Chill until hard.