and fold it up to the left edge. make the corner meet the crease you made earlier. flatten this fold out properly all along it's length.
fold the left bottom corner across to meet the right side. make the corner meet the top fold exactly as shown.
fold the top layer, top corner down as shown.
press this fold in firmly.
do the same on this side to complete the cup.
and there you have it, the completed cup. open it out and put it in your counter top compost bin. 