2 C corn oil*, or olive oil
1/2 C achiote (annatto) seeds
1) heat the oil and seeds over medium heat until the oil begins to bubble.
2) remove from heat and let cool.
3) strain the seeds out of the oil and discard them.
4) you can store it for 1-2 months in a cool dry place.
*corn is particularly bad for having been contaminated with GMOs. If you are able, purchase organic corn or canola oil.