Original Rice Krispie Treats

4 Tbsp butter
5 cups miniature marshmallows - I just use the whole small bag
6 cups Rice Krispies cereal

Melt butter in large saucepan over low heat.  Add marshmallows and stir until completely melted.  Remove from heat.

Add Rice Krispies cereal, stir until well coated.

Using a buttered spatula or waxed paper, press mixture evenly into a 13x9 pan coated with cooking spray.  Cut into 2 inch squares when cool.  Best if served the same day.