Great recipe from the Gooseberry Patch Cookbook.
4 1/2 c. sugar
5-oz. can evaporated milk
3 6-oz. pkgs. chocolate chips
1 c. butter, melted
Optional: 1 c. chopped nuts
1 t. vanilla extract
In a large saucepan, bring sugar and milk to a boil; continue cooking for 7 minutes. Stir in remaining ingredients, except vanilla. Remove from heat and stir in vanilla.
Spread mixture into a greased 8"x8" pan; let cool. Makes about one pound.