01 -
Preheat the oven to 350°F (175°C) and grease or line an 8x8-inch baking pan with parchment paper.
02 -
In a medium bowl, blend melted butter, granulated sugar, eggs, and vanilla extract until well combined.
03 -
Add all-purpose flour and salt to the wet mixture, stirring until just incorporated. Do not overmix.
04 -
Spread the prepared batter evenly into the baking pan and bake for 20 to 25 minutes or until a toothpick inserted near the center comes out with a few moist crumbs.
05 -
Allow the baked brownies to cool completely in the pan. Once cooled, cut into 12 even squares.
06 -
Gently melt the white chocolate chips or candy melts in a microwave-safe bowl or over a double boiler until smooth and fluid.
07 -
Set one large marshmallow on each brownie square.
08 -
Spoon melted white chocolate over each marshmallow, allowing it to drip over the sides to shape the ghostly appearance.
09 -
While the chocolate is still soft, add mini chocolate chips to form eyes and mouths on each ghost.
10 -
Let the assembled brownies stand until the chocolate coating is fully set and firm before serving.