1½ tsp. vanilla extract
1½ tsp. orange extract
1 stick unsalted butter, softened
¾ cup sugar
3 eggs, beaten
1 egg white, beaten
2 Tbsp. light corn syrup
3 cups flour
1½ cup walnuts, or pistachios (toasted and chop coarsely)
2 Tbsp. instant coffee powder
¾ cup unsweetened cocoa powder
2½ tsp. baking powder
pinch of salt
handful of chocolate chips
1) Preheat oven to 350°F. Lightly coat cookie sheet with non-stick cooking spray if not using a non-stick cookie sheet.
2) Dissolve coffee in vanilla extracts. Beat butter and sugar in a mixing bowl until fluffy. Stir in eggs and egg white gently one at a time, beating on medium speed. Add in coffee mixture and corn syrup. Fold in the flour, cocoa, baking powder and salt on low speed until mixture is well mixed, stir in the nuts and chocolate chips.
3) Divide dough into quarters on a clean floured board. Roll each portion into a log about 8-10" long and about 1½ inches wide. Place them on cookie sheet 2-inch. apart. Bake for ½ hour. Remove and transfer to cool on wire rack. When it is cool enough to handle, cut each log crosswise and diagonally in ½-inch thickness. Lay each slices flat on cookie sheet.
4) Return to oven to bake further for another 10-15 minutes until the pieces is firm when pressed. Remove and cool completely on wire racks. Store in airtight containers or freeze for up to 2 months.