Homemade all-purpose Mexican seasoning

I spent a while last year experimenting with chili, and finally came up with a mix that seemed to work as a general multipurpose Mexican seasoning. I add it to chilis, tacos, hot bean dip. etc, etc, etc. I doubt it's particularly authentic, but it does the trick.
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All-purpose Mexican Seasoning
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8 tbsp chili powder
4 tbsp cumin
2 tbsp salt (or to taste)
2 tbsp black pepper
4 tsp dark brown sugar (I used molasses sugar, but demerara is also good)
4 tsp cocoa
2 tsp garlic powder
2 tsp onion powder (I couldn't find this so bought freeze dried onion pieces from a Chinese supermarket and crushed them)
2 tsp oregano
2 tsp paprika
2 tsp smoked paprika (change ratio of smoked to normal paprika to your desired smokiness level)
1 tsp cinnamon