This rub creates roughly 0,25 litre.  (TS = tablespoon, but any unit will do)

2 TS of smoked paprika powder
1 TS of regular paprika powder
2 TS of Salt
3 TS of regular sugar
2 TS of brown sugar
1 TS of grounded cumin
1 TS of chili powder
1 TS freshly grounded pepper
1/2 TS cayenne pepper
1 TS of onion powder
1 TS of garlic powder
1 TS of celery salt
1 TS of dried oregano

Game on! Enjoy!