Best Fudge

Directions

1. 1
   Combine evaporated milk and sugar.
2. 2
   Bring to a boil and continue boiling for 8 minutes stirring constantly.
3. 3
   Add the butter and chocolate chips, stir until melted.
4. 4
   (At the same time you can add the bitter chocolate if desired.
5. 5
   I don't like bitter chocolate, so I don't add that).
6. 6
   When everything is well blended, add the vanilla.
7. 7
   Pour into a lightly greased 9 x 13 cake pan.