Of course to make authentic New Mexico chili powder, you're going to need dried New Mexican peppers. Unless you grow them or know a local supplier, then online is always a good bet. But if you can't get them you can always substitute with another variety like anchos or Californian peppers.
What You'll Need: (makes about 9-10 tablespoons)
10-12 dried New Mexico peppers
2 tbsp paprika
2 tbsp cumin seeds
2 tbsp dried oregano
2 tsp allspice berries
1 tsp garlic powder
1 tsp onion powder
2 tsp sea salt
tbsp = tablespoon
tsp = teaspoon
Directions:
Store in an airtight jar out of direct sunlight and use within 6 months.