Heat oven to 375°. Coat 9x13x2" baking pan with nonstick cooking spray.
Stir togather flour, baking powder, salt, crushed cereal and sugar; stir in butter until throughly mixed. Remove and reserve 1/2 cup mixture for topping. Add egg to remaining flour mixture; stir to combine. Press dough into bottom of prepared pan.
Bake at 375° for 10 minutes or until lightly browned. Remove from oven:cool slightly. Spread strawberry preserves over dough. Sprinkle with reserved crumb mixture. Bake 19 minutes more.Remove from wire rack. Let cool. Cut into 24 bars.