Bittersweet Chocolate Blackout Cookies

• nonstick cooking spray
• instant espresso or 2 tablespoons instant coffee powder↗2 tablespoons
• water↗1⁄3 cup
• (18 1/4 ounce) box devil's food cake mix, divided1
• butter, melted↗1⁄4 cup
• egg↗1
• bittersweet chocolate, chopped into chunks↗8 ounces

Step-by-step instructions

1. 1

   Adjust oven rack to middle position and preheat oven to 350 degrees.

2. 2

   Spray baking sheets with nonstick cooking spray.

3. 3

   In large bowl of electric mixer, combine espresso powder and water, stirring to dissolve.

4. 4

   To same bowl add half of cake mix along with butter and egg.

5. 5

   Mix on medium high speed 1 to 2 minutes or until smooth.

6. 6

   Stir in remaining cake mix and chocolate chunks.

7. 7

   Drop by teaspoonfuls, 2" apart on prepared baking sheets.

8. 8

   Bake 9-12 minutes or until edges are set at center when lightly touched.

9. 9

   Cool one minute on sheets.

10. 10

    Transfer to cooling racks using thin, flexible spatula.