Halloween Pumpkin Brownies on BakeSpace.com

Ingredients

• 2/3 cup packed brown sugar
• 1/2 cup canned pumpkin
• 1 large egg plus 2 egg whites
• 2 tablespoons olive oil
• 1 cup all-purpose flour
• 1 teaspoon baking powder
• 1 teaspoon unsweetened cocoa powder
• 1/2 teaspoon ground cinnamon
• 1/4 teaspoon ground allspice
• 1/4 teaspoon salt
• 1/4 teaspoon ground nutmeg
• 1/3 cup miniature semisweet chocolate pieces
• Orange Marshmallow Frosting:
• 1/4 cup sugar
• 2 tsp water
• 1 tsp orange extract
• 1 large egg white
• Small amount of orange concentrated icing paste (or food coloring)
• 1/2 jar (3 ½ oz) marshmallow crème