1. Preheat oven to 300 degrees Fahrenheit.
2. In large bowl, combine the sugars and the margarine to form a grainy paste. Add eggs and dissolved coffee and beat at medium speed until smooth.
3. In a separate bowl, combine ﬂour, cocoa, baking soda, and salt; sift together well and add to the batter with the chocolate chunks. Mix until just combined. Do not over-mix.
4. Drop by rounded tablespoonfuls onto ungreased cookie sheets, two inches apart. Bake for 18 to 20 minutes. Do not over-bake. Allow to cool before serving.