4 oz Unsweetened chocolate
3 tb Butter
3 c  Confectioners sugar
4 tb Milk
1 ts Vanilla
pn Salt

In top of boiler over simmering water, melt chocolate & butter,
stirring occasionally until smooth. Remove top part of boiler; cool
chocolate until warm to the touch. In medium bowl, combine sugar,
milk, vanilla & salt, stirring until well blended. Stir in melted
chocolate until thoroughly combined. Frosting will be thick as it
cools; spread quickly on cooled cake. If too thick to spread, add 1-2
Tbls. additional milk.