Preheat oven to 350 ºF. Spray mini-muffin pans with vegetable cooking spray.
Combine brownie mix, oil, eggs, water and fudge packet in large bowl; stir with spoon until well blended, about 50 strokes.
Spoon batter into each muffin cup; top with candy.
Bake 15 to 17 minutes or until set. Cool in pans 5 minutes. Carefully loosen brownie muffins from pan. Remove to cooling racks; cool completely.
* Hershey's® Kisses® are registered trademarks of Hershey Food Corporation