In medium large deep bowl add the oats,brown suger,butter,semolia,water,blitz until creamy nd oats is smoother,(here used hand blender but can try jug blender or maybe sharp chopper/spice chopper etc.can investig8 wot works best.see pic for some ingreds used

Now add in the baking powder, cranberries(if too large can chop up),and the white chocolate disks which need to be broken down so can use the hand blender

Then add the flour bit by bit mix in gently with spatula then stir well all around then form a nice dough not sticky not tough just coming together nicely when knead with hand collect all crumbly dough poeces on your wrk surface or board or bowl..

Don't forget to immediately remove from tray into a plate or container..let cool completely and can now store in air tight. Or maybe food bags..