They're called triple indulgence chocolate cookies, and they are easily the best cookies I have ever tasted, even without the coffee reduction. Every time I make them, people go nuts, and tell me the same, so I'm not exaggerating about this recipe.
The book I got it from (The Professional Pastry Chef by Bo Friberg) is a little nuts about quantities, (the recipe makes 80 cookies) so I usually scale things down to 1/4. Although the book tells you to use powdered sugar to prevent the dough from sticking when you shape the logs, I dislike the white blemishes this creates, so I prefer to roll the logs on plastic wrap, which guarantees a minimum of sticking, and makes it easier to wrap the logs prior to refrigeration. Sweet dark chocolate and true cake flour are difficult to find, so I substitute bittersweet chocolate and cake/pastry flour, respectively. The walnuts can be omitted to no ill-effect, depending on your preference.
This is my favorite cookie recipe, and if you dare sully it by using bad quality chocolate to make it (Baker's brand, for example) I'll know, and I will come to your home and administer a major ass whupping, until you learn :twisted:
1 Pound (455 g) sweet dark chocolate
6 Ounces (170 g) unsweetened chocolate
3 ounces (85 g) unsalted butter
5 eggs
14 ounces (400 g) granulated sugar
1/2 tsp (3 g) mocha paste or 2 TBSP (30 ml) coffee reduction
1 tsp (5 ml) vanilla extract
3 ounces (85 g) cake flour
2 tsp (8 g) baking powder
1 tsp (5 g) salt
8 ounces (225 g) dark chocolate chips
8 ounces (225 g) white chocolate, coarsely chopped
6 ounces (170 g) chopped walnuts
1. Chop the unsweetened and dark chocolate into small pieces and melt with the butter over simmering water.
2. Whip eggs and granulated sugar at high speed until light and fluffy. Blend in the mocha paste or coffee reduction and the vanilla. Fold the egg mixture into the melted chocolate.
3. Combine the flour, baking powder, salt, chocolate chips, chopped white chocolate, and walnuts. Add to the chocolate and egg mixture and stir just until combined. Refrigerate the dough until it is firm enough to handle.
4. Divide the dough into 4 equal pieces, approximately 1 pound 2 ounces (510 g) each. Roll each piece into a rope, 16 inches (40 cm) long, using powdered sugar on your work surface to prevent sticking. Refrigerate the ropes until they are firm.
5. Using a sharp serrated knife, cut each rope into 20 equal pieces. Place the cookies, cut-side down on sheet pans lined with baking paper or silpats.
6. Bake the cookies, double panned, at 375 degrees F (190 C) for about 10 to 12 minutes. The cookies should be baked just until the sides are barely firm, with the centres remaining soft and gooey.