Step 1

Slice or dice onions

Step 2

Add to slow cooker

Step 3

Cook on low for 4-6+ hours

Step 4

Drain onions (use that for a meal later)

Step 5

Spread onions on dehydrator trays

Step 6

Dry at 125°F / 52°C for 8-12 hours

Step 7

Condition

Step 8

Store in an airtight container

Step 9

Add dehydrated onions to your favorite grinder

Step 10

Pulse a few times, then blend into a find powder

Step 11

Redry the powder

Step 12

Store in an airtight container with arrowroot powder to help stop clumping