Brown-sugar chocolate fudge cooked to the firm-ball stage, then beaten until creamy.

Steps

1. Mix sugar, milk, cocoa and salt in a large saucepan and cook over low heat until sugar is all melted (no grains).
2. Increase heat and cook until a firm ball forms when tested in cold water.
3. Lower heat when testing. Remove from heat, cool slightly, add margarine and vanilla and beat until mixture thickens and begins to lose its shine.
4. Pour into a lightly greased pan and cool.
5. Cut into squares.