Do you blend your own chili powder?

What you’re making is a Chili Blend. True chili powder is made of just ground chili peppers. No seasonings. There are different kinds of chili powder blends: Thai, Indian, etc. Cayenne alone is a chili powder.

My chili powder consists of Guajillo, Ancho, Arbol in equal quantities. The other seasonings, cumin/Mexican oregano/garlic powder, are added as I am cooking but not combined with the powder first. This allows me to control the amounts that provide just the right flavor I like for what I’m cooking.