I received 2 chili powder blends from Penzey's as part of a Christmas present - they contain ancho chili powder, cumin, oregano...and I think that's it. The chili recipes that I make use pure chili powder in addition to amounts of cumin and oregano - not all blended together when measuring out. Does anyone have any idea what the ratio of ancho chili powder to cumin to oregano is in these blends so I'll know how much more or less to add of the pure spices when making chili so that the taste isn't changed too drastically? Thanks, N.