Yes! u003cbr/u003ePlace the butter and marshmallows in a large microwave safe bowl.u003cbr/u003eHeat for 2 to 3 minutes, stirring every 1 minute, until melted. u003cbr/u003eWorking quickly, add the cereal and stir to combine fully with the melted marshmallow mixture. u003cbr/u003eFold in the cookie pieces and extra marshmallows.u003cbr/u003eTransfer to your prepared dish. Gently press into an even layer.u003cbr/u003eAllow the bars to sit for 5 to 10 minutes. Slice and serve!