Prepare brownie batter according to package or homemade recipe, using coffee instead of water if desired.
Line a baking pan with parchment paper and pour in the batter.
Bake until a toothpick comes out mostly clean with a few moist crumbs.
Let brownies cool completely before adding toppings.
Slice or halve strawberries and blot dry with a paper towel.
Arrange strawberries evenly over the cooled brownies.
Heat heavy cream until hot but not boiling.
Pour hot cream over chocolate chips and let sit for 5 minutes.
Whisk until smooth and glossy.
Pour ganache over strawberries and spread gently.
Refrigerate for 15–30 minutes, or until ganache is fully set.
Slice and serve.