heat oven to 350

combine flour, baking soda and salt

beat butter and sugar together until light and creamy

add egg and vanilla

gradually add flour mixture, beating well

stir in chocolate chips and 1 cup of cereal.

spread in pan

bake on center rack for 18 to 20 minutes

sprinkle evenly with marshmallows

return pan to oven

bake 2 or 3 minutes longer or until puffed

immediately sprinkle with the rest of cereal

press lightly into marshmallows, using a large spoon.

cool in pan

cut into 24 slabs