6 T. chili powder
1 ½ tsp. garlic powder
1 1/2 tsp. onion powder
3/4 tsp. red pepper flakes (or 1/4 tsp. cayenne pepper)
1 1/2 tsp. oregano
1 T. paprika
3 T. cumin
2 T. Kosher salt
2 T. black pepper

Put all of the ingredients in a jar or a container with a lid and shake, shake, shake.