1 pound semisweet chocolate, finely chopped- 2-2/3 cups of semisweet chocolate chips will work perfect.
(1) 14 oz. can sweetened condensed milk
1 teaspoon chocolate or vanilla extract
1-1/4 cups chopped pecans- optional
Butter an 8" square pan.
In the top of a double boiler melt the chocolate and milk together, stirring until very smooth. Or add the chocolate and milk to a glass bowl and microwave on high, stirring every 15 seconds, until melted and smooth.
Add to that the vanilla extract along with the pecans- if using.
Pour into the pan and cool until set.
Cut into bite size pieces.