Onion powder is a dry powder made from onions that have been dried then finely ground. It is used as you would a spice, in small quantities.
The powder adds an onion flavour to dishes.
You can make it yourself, or buy it already made.
Yields and Equivalents
1 medium fresh onion (2 ½ to 3 oz) = ½ to ⅔ cup chopped fresh onion = 1 tablespoon onion powder
1 small fresh onion ( 1 ½ oz) = ⅓ cup chopped fresh onion = 1 teaspoon onion powder = 1 tablespoon dried onion flakes
1 tablespoon onion powder = 10 g (.4 oz)
Prep and dry onion as per recommendations for dehydrating onion.
When dried and cooled, store dried pieces for a few days in a sealed container to ensure there will be no condensation starting. If there is, dehydrate a bit more, as that excess moisture would affect your powder.
When are you sure that your pieces are truly safely dried, you can grind them into powder. (Make sure they are quite brittle before attempting to grind them into a powder, or they dance around the food processor blade.)
It’s ideal if you can grind in two steps but just one step is fine if that is all you can do or wish to do:
- Put in food processor and grind to a coarse powder (you can stop here if you wish);
- Take the coarse powder, and in small batches, process through an electric coffee bean mill to reduce to a fine powder. You may need to strain your work a few times and reprocess any pieces that didn’t turn to a powder.
Note that you may not be able to get as fine a floury-like powder as you can with some other items. That’s fine.
Store in an air-tight jar. Label jar with name of product and date. Store away from heat and direct light.
No need to rehydrate first when using.
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