Heat oven to 375 degrees F. Coat 13 x 9 x 2-inch baking pan with nonstick cooking spray.
Stir together flour, baking powder, salt, crushed cereal and sugar; stir in butter until thoroughly 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 degrees F 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 to wire rack; let cool. Cut into 24 bars. Makes 24 bars.