Cookies being one of the favourite snacks for kids and adults alike, we have often had to deal with leftover cookies, specifically if you are not interested in freezing them to use in the future. There are a few interesting ways to turn leftover cookies into something delicious!  Making brownies is the best way to recycle leftover cookies.  Crumble the cookies and use the crumbs as toppings for ice cream, or transform them into pumpkin-flavoured ice cream. Break the cookies into small pieces, blitz in a blender, stir the crumbs into a vanilla ice cream mixture and freeze. Turn them into a delicious milkshake. Replace Oreo with these holiday cookies in an Oreo milkshake. Break the cookies into bite-size pieces and layer them in yogurt granola parfait.