Chocolate Sauce

Directions

1. 1
   Put chocolate and butter into a medium heavy-bottomed saucepan.
2. 2
   Cook and stir over low heat just until chocolate melts. Remove pan from heat and alternately stir in sugar and milk. Cook over low heat, stirring constantly, until thickened, about 5 to 8 minutes.
3. 3
   Add vanilla or liqueur.
4. 4
   Refrigerate, covered, up to 3 weeks.
5. 5
   Makes about 3 cups.