1 c. evaporated milk
2 c. sugar
1 stick butter
1 (6 oz.) pkg. chocolate bits
1 c. graham cracker crumbs
1/2 c. chopped walnuts

Combine the milk, sugar and butter in a saucepan and bring to a boil. Boil for 10 minutes and add chocolate bits. After chocolate has melted add crumbs and nuts. Pour mixture into an 8 inch pan and cool. Cut into pieces when cooled.