Wash them all and lay on two trays lined with baking paper.
Dehydrate in cool oven, around 90-100ºC…it may take several hours, but don’t be discouraged. Keep going…and going…and going.
When they are fully dry, place into Thermo bowl, handful at a time and blitz, adding more after each amount has been reduced.
Finally when all of it is in there, blend for 1 min/speed 10.
Place into clean, dry jar and use randomly as desired or when feeling in need of a nutritional boost.