Golden Peanut Butter Bars

 1/3 cup creamy peanut butter
3 Tbsp butter
1 bag (10 oz) marshmallows
5 cups golden grahams cereal

Grease bottom and sides of 9 inch square pan with nonstick spray.  In saucepan, heat peanut butter, butter and marshmallows, stirring constantly, until melted.  Remove from heat.  Gently stir in cereal, 1 cup at a time until evenly coated.  Press mixture evenly in pan with buttered spatula.  Cool completely, about 30 minutes before cutting to serve.