Heat oven to 350°F. Unroll crust on work surface.
Using 1 1/2-inch round cutter, cut out 24 to 28 rounds; place on ungreased cookie sheet. Brush tops with egg; sprinkle with sugar.
Bake 7 to 10 minutes or until lightly browned.
Drizzle with caramel topping; top with chopped apples, cereal and marshmallows. Sprinkle with chocolate chips. Drizzle caramel sauce across tops.
Bake 5 to 7 minutes longer or until marshmallows start to puff and brown.
Drizzle caramel sauce over tops.