In a large mixer bowl, combine brown sugar and butter. Beat at medium speed,
scraping bowl often, until creamy (1 to 2 minutes). Add melted chocolate and vanilla
extract. Continue beating, scraping bowl often, until well mixed (1 to 2 minutes).
Reduce speed to low; add all remaining ingredients except confectioners' sugar.
Continue beating, scraping bowl often, until well mixed (1 to 2 minutes).
rounded teaspoonsful of dough into 1-inch balls. Place 2 inches apart on cookie
Bake for 8 to 10 minutes, or until set.
Remove from oven and let stand 5 minutes; carefully remove from cookie sheets. Cool another 5 minutes.
Roll in or sprinkle with confectioners' sugar while still warm and again