Chocolate Chestnut Truffles

Process chocolate in a food processor until smooth, stopping once to scrape down sides. Add remaining ingredients, and process until smooth. Cover and chill 8 hours.

Let mixture stand at room temperature 1 hour; shape into 1-inch balls, and roll in cocoa. Place in paper candy cups, if desired. Cover and chill at least 2 hours.

*We used Ghirardelli chocolate.