1Heat oven to 350°F. Spray bottom and sides of 13x9-inch pan with cooking spray.
2Make brownie mix as directed on brownie box using water, oil and eggs. Bake 20 minutes.
3Meanwhile, in medium bowl, mix sweetened condensed milk and egg with whisk. Pour mixture over partially baked brownie base. Sprinkle candy bar pieces evenly over base; top with sliced almonds. Bake 22 to 27 minutes longer or until center is set.
4Cool completely, about 1 hour 30 minutes. For bars, cut into 8 rows by 4 rows.