
Ghost Marshmallow Brownies are the cutest, most delicious ghosts you've ever met.
Preheat oven to 350°F. Brush a 9x9-inch baking pan with butter and line with parchment paper, leaving an overhang on two sides. Butter the parchment paper.
Use the overhanging parchment paper to lift brownies out of pan, then cut into 16 squares. Arrange squares on a parchment-paper-lined rimmed baking sheet. Top each square with a marshmallow.