Peel fresh garlic cloves
Slice the cloves thinly and evenly
Spread the slices in a single layer on a baking sheet or dehydrator tray
Dry the garlic completely until brittle
Let the dried garlic cool
Grind the dried garlic into a fine powder using a spice grinder, blender, or mortar and pestle
Sift the powder if needed for a finer texture
Regrind any coarse pieces
Store in an airtight container in a cool, dry place