Culinary use of Anatto:
Anatto seeds are soaked in hot water and then ground. The spice is mainly used for dyeing food such as soups and rice dishes.
If the seeds are roasted in oil at low heat, this oil is colored deep gold / orange and you can drip it over food like salads or poultry.
You can use the seeds in any dish where you would have used nutmeg, the additional effect is its coloring.
When you soak Anatto seeds in hot water, after a while, you can grind them and mix them with other spices from your own spice blend.
Try them in rice or mashed potatoes.