2 & 1/2 cups semi-sweet chocolate chips
1 can sweetened condensed milk
1 & 1/2 tsp vanilla (use the pure stuff, please)
Combine chips and milk in large microwave safe glass bowl. Cook on high 3 minutes. Stir until smooth. Add vanilla and salt. Mix well. Turn into wax paper-lined square pan and spread evenly. Chill for 2 hours. Turn over onto cutting board, peel off wax paper, and cut into squares.
Now, you can either engorge yourself until you are in a chocolate-induced coma or you can arrive at the Christmas party with a pretty plate of fudge and let everyone think you spent hours stirring and watching the candy thermometer. I won't tell, either way.
Merry Christmas, and happy writing!