Apple Caramel Cake Rice Krispie Treats

Grease a 9″ x 13″ baking pan with butter or nonstick cooking spray and set aside. Prepare caramel sauce from cake mix packet according to package directions. Set aside.

In a large saucepan, melt butter and marshmallows over medium heat, stirring occasionally. Once marshmallows are melted and mixture is creamy, stir in cake mix and vanilla. Gradually stir in Rice Krispies until combined.

Pour half the mixture in prepared pan. Dollop half the caramel sauce on top. Top with remaining Rice Krispies. Add remaining caramel sauce on top.

Set aside until cool and cut into squares.