Wash berries and pat dry if using fresh. Thaw if using frozen.

Dehydrate berries at 130-140°F for 18-24 hours until completely dried and brittle.

Let berries cool to room temperature.

Working in batches, grind dried berries into a fine powder using a blender, food processor or coffee grinder.

Sift out any pieces of skin or seeds if desired.

Store powder in an airtight container in a cool, dark place.