Spooky Ghost Marshmallow Brownies

Preheat oven to 350ºF. Line a 8 x 8-inch baking pan with parchment paper and grease with butter or nonstick spray.

In a large bowl, whisk melted butter and sugar. Whisk in eggs and yolk, one at a time, until smooth. Add vanilla. Gently mix in flour, cocoa powder, salt, and baking soda.

Pour batter into prepared baking pan and bake 30–35 minutes. Remove from oven and cool completely to room temperature.

Refrigerate 30 minutes, and then slice into 16 pieces.

To make the ghost topping, add 1 marshmallow to each brownie. Spoon 1 to 1 ½ tablespoons melted white chocolate over marshmallow to coat. Allow chocolate to drip over the edges. Add 2 mini chocolate chips for eyes and let chocolate set completely.