1
Stir together sweetened condensed milk and half of the Biscoff spread, then set aside.
2
Microwave the remaining Biscoff spread, then set aside. Beat the heavy cream and vanilla. Fold the whipped cream into the sweetened condensed milk mixture, then stir in chopped Biscoff cookies.
3
Layer the creamy mixture and dollops of the melty Biscoff spread alternately, then swirl everything together.
4
Top with some more chopped Biscoff cookies and freeze.