TO PREPARE THE SUGAR COOKIE HEARTS: Remove the wrapping from the dough log and place on a cutting board covered with a sheet of parchment paper (to prevent sticking)
First create a triangle shape by gently pressing the dough toward the cutting board to flatten the surface touching the cutting board. Turn the dough log to flatten all three sides of the triangle shape.
Wrap the dough in the parchment paper.
To create the indentation at the top of a heart, press the back of a large knife down the middle of one of the sides of the dough log.
Use your fingers to round the edges on either side of the indentation to complete the heart shape.
Freeze the dough for at least 2 hours or overnight until firm. The dough must be firm to hold the heart shape when cut.
When the dough has firmed, cut into ¾”-1” thick heart shaped slices. Press the top of each heart onto a plate of decorating sugar or sprinkles.
Keep the hearts in the freezer while preparing the brownie batter.
Preheat oven to 350 degrees F.
Prepare one 9” x 13” pan depending on use. If you plan to mail the entire pan of brownies in a disposable pan, lightly grease the disposable pan with vegetable shortening. If you plan to remove the brownies from the baking pan ( to wrap whole, to wrap after cutting, or to cut and eat at home), foil line the baking pan, allowing for a little overhang (for easy lifting later) and spray with non-stick spray.
In a medium bowl, whisk together the flour, cocoa, baking powder, salt and espresso powder. Set aside.
In the bowl of an electric mixer, combine the shortening, sugar, and eggs. Beat until light in color and fluffy (about 3 minutes).
Gradually add in the flour mixture, until combined.
Stir in the semisweet and mini chocolate chips.
Scoop the batter into the prepared pan (it will be thick), using a spatula or spoon to even out the batter into the entire pan and smooth the surface.
Place the sugar cookie heart on top of the brownie batter 1 ½”-2” apart. Do not press into the batter. The cookies will flatten and spread while baking.
Bake for 25-28 minutes. The toothpick test doesn’t work very well because of all of the melting chocolate chips. If the top is firm after 25 minutes, take it out. (Mine baked for 25 minutes). Cool completely in the pan.
Store brownies at room temperature in an airtight container or zip lock bag for at least 2 weeks.