Ingredients:
Peels of 4–6 onions (red or yellow, well washed and dry)
Optional: a little salt or dried herbs for more flavor
Preparation:
1. Peel the onions, wash the skins thoroughly, and let them dry completely. (Ideally, leave them on a kitchen towel for a day to ensure no residual moisture remains.)
2. Place the onion skins on a baking sheet lined with parchment paper.
Dry in the oven at 60–70 °C (convection) for about 2–3 hours, until they are completely dry and rustle-free. Alternatively, dry in a dehydrator.
3. Place the completely dried peels in a blender, food processor or coffee grinder and grind finely until a powder is formed.
4. Fill the finished onion powder into an airtight glass jar or spice container. Store in a cool, dry place.
