Preheat oven to 350 degrees. Line a 9x13 pan with parchment paper.
In a large bowl melt butter in the microwave for 1-2 minutes. Stir in cocoa powder. Cool slightly.
Stir in sugar, eggs, vanilla, baking powder, espresso powder, and salt.
Add flour a little at a time until just combined.
Fold in chocolate chips.
Using a fork, lift cherries out of the pie filling and tap the edge of the bowl. We want to avoid any of the syrup from getting into the batter. Fold cherries into batter.
Pour batter into prepared baking dish.
Bake for 25-30 minutes or until a toothpick comes out with just a few moist crumbs. Cool completely.
In a medium microwave safe bowl melt chocolate and heavy whipping cream for 30 seconds a time stirring in between.
Whisk until chocolate is melted and thickened.
Pipe or drizzle using a spoon onto cooled brownies. Allow to harden for 20-30 minutes.