Ice cream fudge sauce

This is my Nana's recipe.
To date I have never tasted any better.
And you really don't need the ice cream.
Nor do you need to warm it up.
Many times I eat it cold right from the jar.

It makes a great homemade Christmas gift.

2 squares unsweetened baking chocolate
Approximately 1 Tb. butter
3/4 c. sugar
1/4 c. cocoa
1 (5 oz.) can evaporated milk
Pinch of salt
1/2 tsp. vanilla

Melt chocolate with a lump of butter.
Add sugar, cocoa, evaporated milk, salt and vanilla.
Stir over low heat until thick.

Yields: 1 jar