Double Chocolate Brownies

Ingredients

• 1/4 cup unsweetened applesauce
• 1 teaspoon vanilla extract
• 4 egg whites
• 1 cup sugar
• 1/4 cup unbleached, all-purpose flour
• 1/2 cup unsweetened cocoa powder
• 1/2 teaspoon instant espresso powder
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1/4 cup mini chocolate chips (semi-sweet)
• Butter-flavored cooking spray