Place biscuits (or any other biscuit of choice) into the Thermomix bowl. Blitz 6 sec/speed 6.
Add melted butter and combine 6 sec/speed 4.
Press into large flan tin (23cm approx) with removable base or several smaller tins and either chill/freeze for 30 minutes or bake in fan-forced 160°C oven for 10 minutes.
Cool before proceeding with remainder of recipe as directed.