Take the soft, chewy texture of a brownie and marry it with the crunchy cinnamon shell of a Snickerdoodle cookie, and voila--the birth of the Snickerdoodle Blondie! As if that weren't enough, their flavor improves with age and they travel well. A nice variation on a regular blondie.
Preheat over to 350 degrees F. Lightly grease 13" x 9" baking pan. Sift together flour, baking powder and salt; set aside. In large bowl, beat together butter, brown sugar, eggs and vanilla until smooth. Stir in flour mixture until well blended. Spread evenly in prepared pan. In small bowl, combine white sugar and cinnamon. Evenly sprinkle cinnamon sugar mixture over top of batter. Bake 25-30 minutes or until surface springs back when gently pressed. Cool slightly. While still warm, cut into bars with sharp knife.