How to make rice krispy treats if i only want to use half the box of kellogs rice crispy cereal?

Directions

Melt margarine in large sauce pan over low heat. Add marshmallows and stir until melted and well-blended. ...
Add cereal. Stir until well coated.
Using buttered spatula or waxed paper, press mixture evenly and firmly in buttered 13 x 9 inch pan. Cut into 2 x 2 inch squares when cool.



Directions• Melt margarine in large sauce pan over low heat. Add marshmallows and stir until melted and well-blended. ... • Add cereal. Stir until well coated. • Using buttered spatula or waxed paper, press mixture evenly and firmly in buttered 13 x 9 inch pan. Cut into 2 x 2 inch squares when cool.Can substitute marshmallow creme instead of marshmallows.....There are a couple of "secrets" to making the perfect gooey Rice Krispie Treats: (1) the stovetop is THE way to go (the pan washes out easy w/hot soapy water) (2) you HAVE to melt the butter sloooowly and make sure it doesn't turn brown at all. (3) mix in the marshmallows and melt them just as slowly. If the butter gets brown, the treats will be dry. We double our recipe and it still fits fine into a 13x9 pan (grease the pan w/butter). To make them truly gooey use the following measurements: 11.5 cups Rice Krispies, 1 whole stick of butter, (1) 16oz bag of mini marshmallows. (I always use Jet Puff brand). I've become the neighborhood "treat" maker because the neighbors say theirs never turn out like mine.

Did you look at the recipe? It doesn't say to use " a box" of rice krispies. Such an instruction would be useless, since they come in different sizes of boxes. Look at the recipe and see how much it calls for of each thing, and use half as much.

Adjust the recipe.