Black Bean Dip

Here is my attmpt to replicate 'Northern Lights Black Bean Dip' - you can't
get it in Australia (and I became very addicted while living in Canada)!
450g can of black beans (I've also used kidney beans and mixed beans...)
1 tsp ground cumin
1 tsp chile powder (ie chile/cumin oregeno mix)
1/4 cup vinegar (more or less to taste)
1/4 cup chopped corriander (optional!)
Drain and rinse beans, process in food processer with other ingregients
till fairly smooth, adding water to bring it to the right texture. As you