I always leave out the cayenne and red pepper flakes, as they would make it too spicy for my kids. I also add extra cumin and salt. I love that it's simple to make and I can adjust it according to our tastes! I like to make a lot of it, and then I have it on hand whenever I need it! For my notes or anyone else it might help, I do x8 of the recipe, and that is a full 2.75 oz jar of chili powder.
