Beat butter, sugar, brown sugar and vanilla in a large bowl with mixer until creamy.
Add eggs, beat well.
Stir together flour, baking soda, vanilla pudding, and salt, gradually add to butter mixture until well blended.
Add chocolate chips and marshmallows to the mixture and stir together.
Crush the cereal into smaller pieces and add to the mixture, stir in some more.
Drop by Tablespoon onto a lightly greased and floured cookie sheet. Bake 8 to 10 minutes or until lightly brown. Cool slightly and transfer to a wire rack to cool completely.
OPTIONAL:
You can spread a small mount of marshmallow creme and some more cereal crumbs on top of each cookie before baking to make them even better!
Recipe by The 36th AVENUE at https://www.the36thavenue.com/smores-cookie-recipe/