How do I make sugar from sugar cane?

Process is almost identical to other products. Plant sugar canes (only one is needed but you can plant more for later) and harvest when fully grown. Click on sugar factory (or whatever it's called) and hold down on the sugar blocks which is the first sprite. Drag towards the cardboard boxes and place in the first one. Wait for it to produce and when it's done collect by clicking the factory again and clicking the blocks on the shelf above the boxes.