Never Fail Fudge

Directions

1. 1
   Melt butter on medium to high heat.
2. 2
   Dissolve sugar.
3. 3
   Add milk, bring to a steady boil.
4. 4
   Boil exactly 6 minutes.
5. 5
   Remove. Add vanilla and chips.
6. 6
   Stir until chips are melted.
7. 7
   Pour mixture into ungreased pan.
8. 8
   Let cool until firm, then cut into squares.