I thought I would post my "mix" for the best bucket of slop Ive made.

Large flexi bucket required. (To dunk my big fat head into. lol)

2kg bag of porridge oats, soaked overnight.
2 Large bags of icing sugar stirred in to sweeten and "sticky" it up.
4 Litres of ready made custard.

Very simple but was very gloopy and sticky.