Remove the stems and seeds from the chile peppers. Tear the chiles into small
pieces.
Combine the chiles in a skillet with the cumin, cloves, coriander and allspice
and stir continuously over low heat until there is a faint crackling noise and the
fragrance of the peppers is perceptible. This will take about two minutes.
Cool
completely.
Combine oregano and garlic salt in a spice mill and grind to a fine powder. Mix,
then store airtight.