Chill a mixing bowl and whisk for 10 minutes. Whip heavy cream and sweetened condensed milk until stiff peaks form (3-5 minutes).

Gently fold Lotus Biscoff spread into the whipped mixture until streaks are visible.

Microwave remaining Biscoff spread for 10-15 seconds until runny for drizzling.

Line a 9x5 loaf pan with plastic wrap, leaving overhang for easy removal.

Layer by spreading cream mixture in the pan, then adding a layer of biscuits, and one-third of the cream mixture. Drizzle with Biscoff spread.

Repeat layering process two more times, finishing with cream mixture on top.

Cover with plastic wrap and freeze for at least 2 hours or overnight.

Slice while frozen and let sit at room temperature for 15 minutes before serving.