Melt the ice cream until it's easy to mix. Melt the biscoff spread in a microwave for 20-30 seconds, add to ice cream, and mix together by hand (though you can use a food processor if you like).
Place the ice cream into a Ziploc bag. Cut off the tip of one corner and “pipe” into half a sphere. Decorate with cookie crumbs and Presidor wafers.
Recipe by Between Carpools at https://betweencarpools.com/serve-dessert-ball/