To make the crust, start by melting the butter. Crush the Biscoff cookies and mix them into the melted butter. Press the mixture evenly into the bottom of a springform pan.
Mix the ingredients for the filling with a hand mixer. Spread the mixture over the cookie base. Refrigerate the cake for at least 1 hour.
For the topping, put the Biscoff spread in a saucepan and melt it while constantly stirring. Just make sure the spread doesn't overheat and burn! Once properly melted, let the topping sit until it thickens slightly.
Remove the cheesecake from the pan using a hot knife. Pour the topping over the cake so that it drips down the sides unevenly.
Now chill the cake for at least an hour. Garnish the the cheesecake with some more crumbled Lotus cookies before serving.