Storage: Store aji amarillo chili peppers in an air-tight container in a cool, dark cupboard.
Shelf Life: Aji amarillos will retain their potency for at least a year, but likely much longer.

Reconstitute aji amarillo chilies and add to soups, sauces, and other dishes. Chop them up, toast them (optional) slightly and add them still dried. Grind them into chili powder using a spice grinder or blender for use as is or as part of your own spice blends. Aji Amarillo chilies are indispensable in Peruvian cooking.
How to Rehydrate Dried Chiles
How to Grind Your Own Chile Powder
More Chile Recipes & Techniques