Step #1 In medium saucepan, mix bittersweet chocolate, unsweetened chocolate, & butter; heat & stir over low heat/flame until mixture is melted & smooth.
Step #2 Remove from heat & cool for about 10 mins.
Step #3 In large bowl, eggs, mix sugar, & coffee; beat with electric mixer on medium to high speed for 2 or 3 mins or until well mixed & color becomes slightly lighter.
Step #4 Add cooled melted chocolate, beating until mixd.
Step #5 In a small bowl, baking powder, stir this together flour, & salt.
Step #6 Add to chocolate mixture; beat until mixd.
Step #7 Stir in chocolate pieces.
Step #8 At this point, the dough will look like brownie batter.
Step #9 Cover up dough with wax paper & let this stand at about room temp for 20 mins so that dough can thicken.
Step #10 Preheat oven to 350.
Step #11 Line chookie sheets with parchment paper, silicone, or foil wrap.
Step #12 Scoop 3 oz of dough per cookie (use 3 tbsps of dough if you do not have a 3oz scoop) in mounds 2 inches apart on cookie sheets.
Step #13 Bake in preheated oven about 13 mins, or until tops are set & the cracks on top do not appear moist.
Step #14 Do not attempt to cook these in a cold oven - they do not turn out well.
Step #15 Let cookies cool on cookie sheet for one min before transfering to a wire rack to cool.
Enjoy the Espresso & Chocolate Chip Cookies recipe