3 ways to dry onions

3 ways to dry onions
3 ways to dry onions

You can dry onions at home so you can keep them longer, or you can dehydrate them by baking them if you want to eat them quickly. These are two fairly quick and easy techniques that you can learn here!


Method 1 of 3: Save onions for the winter

Dry Onions Step 1

Step 1. Choose strong enough onions

Sweet ones do not keep as well when dried, so it is better to choose strong onions for this technique.

  • Generally speaking, sweet onions are quite large and have a very thin skin that is easy to remove. When opened in half, they are juicy and their slices are quite thick.
  • The forts are generally smaller and have thicker skin. When we open them in half, our eyes start to cry and the rings are thinner.
  • Sweet onions will only keep for a month or two when dried. The forts, on the other hand, can be kept all winter.
  • The sulfur-based component in onions which is responsible for tearing also helps keep them longer.
  • The best-known strong onion varieties are Brunswick reds, Paris whites and the virtues straw yellow onion.
Dry Onions Step 2

Step 2. Remove the leaves

Using small scissors, remove the protruding leaves, then clean the roots of the onion, taking care to remove any soil residue.

  • This step is only worthwhile if you have grown your onions yourself in your garden. If you buy them in a store, it is quite possible that the soil and leaves have already been removed.
  • Also be aware that you should only harvest the onion when the leaves have started to wilt and wither, as this indicates that the plant has stopped growing. Only ripe onions can be dried and stored.
  • Also be aware that it is best to dry them immediately after harvesting them for best results.
Dry Onions Step 3

Step 3. Transfer the onions to a warm, protected place

Spread them out in a single layer in your pantry and make sure the room temperature is between 15 ° C and 27 ° C.

  • Let them dry like this for a week.
  • If the weather is still dry and hot and you don't have any pets that could damage your crop, you can dry them outside for the first few days. You will then need to transfer them to a garage, shelter or under a covered terrace.
  • Be careful when moving the onions or you may accidentally damage them. Also avoid touching them until they are dry.
  • Do not place them in direct sunlight or they will not dry evenly.
Dry Onions Step 4

Step 4. You can also dry the onions in a braid

Instead of laying them out to dry flat, dry them in a hanging braid.

  • Braid the onions together. Remove any protruding leaves and keep only the 3 most recent. Then braid them together by attaching them with these leaves and hang them from the ceiling so that they finish drying.
  • Note that it has never been proven that onions dry better or faster when braided. So choose the method that suits you best.
  • Let them dry for 4-6 weeks.
Dry Onions Step 5

Step 5. Take off the top

When the onions are drying out and their stems are shrinking, it is important to cut off the top of the plant at least two or three times. Also cut off the roots once they are dry.

  • Cut off the top of each once or twice as they dry.
  • Once they are completely dry, remove the central bud.
  • After the first two weeks, trim the roots to 6mm with scissors.
Dry Onions Step 6

Step 6. Store them in a cool, dry place

For example, you can keep your onions in your cellar during the winter.

  • Place them in a shopping bag, wooden basket or cardboard box with small holes. Only store a maximum of 3 onions together if it is a small container, so that the air can circulate well in the box.
  • The strong can be stored 6 to 9 months when the temperature is 0 ° C, while the sweet onions will keep for two weeks or a month.

Method 2 of 3: Dry onions in the oven

Dry Onions Step 7

Step 1. Preheat the oven to 70 ° C

Prepare at least two baking sheets by covering them with parchment paper.

  • You will usually need one or two standard size baking sheets for each onion you want to dry in the oven. If you only want to dry one onion, prepare two baking sheets. If you are making two or more, prepare three or four plates, etc. Better to plan more space than not enough.
  • Make sure that the oven temperature does not exceed 70 ° C or you could burn your onions.
  • The baking sheet you use should be about 2 inches narrower than the inside of your oven so that the air can circulate well.
Dry Onions Step 8

Step 2. Cut them into thin slices

The root, the top of the onion and the skin should be removed and the thickness of the rings should be between 6 and 3 mm.

The easiest way to do this is to use a mandolin. If you don't have one, try cutting the washers as thin as possible using a sharp knife

Dry Onions Step 9

Step 3. Spread the rings on the baking sheets in a single layer

If you stack the washers on top of each other then they will take longer to dry or they will not dry evenly

Dry Onions Step 10

Step 4. Dry the onions in the oven

Let them dry for 6-10 hours and stir the plate every now and then to keep the heat from getting too suffocating.

  • If possible, leave the oven door ajar 10 cm to prevent the oven from getting too hot. Also remember to place a small fan in front of the oven so that the air circulates better.
  • Leave a space of about 7 cm between the plates and between the upper and lower shelves, so that the air circulates well.
  • Keep an eye out for the onions when they are almost finished drying, as they could burn if left in the oven for too long. They would then be less good and less nutritious.
Dry Onions Step 11

Step 5. Crumble the onions

These will be so dry and crumbly that you can easily crumble them in your hands.

  • To create “onion petals”, simply crumble the onions in your hands. To make powder, place them in a plastic bag and pass a rolling pin over them.
  • You can also leave the onions as they are, but be aware that they may break easily. Handle them with care.
Dry Onions Step 12

Step 6. Store them in a cool, dry place

Place them in an airtight container and store them in your pantry.

  • Your onions can be stored like this for 12 months. If your container is not or not very airtight, you can keep them between 3 and 9 months.
  • Check that there is no mold. If you notice any traces of mold during the first few days, take out the onions, dry them again and let the container dry before putting them back in. Mold can cause onions to rot faster.

Method 3 of 3: Dehydrate onions

Dry Onions Step 13

Step 1. Prepare the onions

They should be peeled and cut into slices 3 mm thick.

  • Cut out the root and remove the skin.
  • Use a mandolin to slice the onion and choose the smallest diameter. If you don't have a mandolin, use a sharp knife instead.
Dry Onions Step 14

Step 2. Place them on the desiccator plate

Place the washers in a single layer on the plate and place the plate so that the air circulates well in the appliance.

  • The washers must not touch or overlap. Spread them out properly so that the air circulates.
  • The plates should also be separated from each other in the desiccator. Leave a space of about 6 cm between each plate.
Dry Onions Step 15

Step 3. Run the desiccator for 12 hours

If it has a thermostat, set it to 60 ° C, until the washers are dry.

If your desiccator does not have a thermostat, then you will need to time the time you take to dry them more accurately. Consider increasing or decreasing the time by about an hour and check the temperature inside the machine using a special thermometer

Dry Onions Step 16

Step 4. Store the dried onions in an airtight container in a cool, dry place

They can now accompany your favorite dishes or be enjoyed immediately.

  • If your container is airtight, then they will keep for 12 months. If your container is not or not very airtight, you can keep them between 3 and 9 months.
  • Check that there is no mold! If you notice any traces of mold during the first few days, take out the onions, dry them again and let the container dry before putting them back in. Mold can cause onions to rot faster.
  • You can also crumble them to make petals or powder.

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