How To Make Garlic And Onion Powder: the fast recipe to flavor your favorite dishes

Total time: 55 Min
Difficulty: Low
Serves: 12 people
By Cookist

These days, going DIY is all the rage! Making your own ingredients in the kitchen has become somewhat of a trend and everyone wants to see how they can make their own spice blends etc. and rely less on store-bought ingredients. This is a quick, easy recipe for making garlic and onion powder in your own home. The flavor is intense and better than the ones you’d get in-store.

To make it, you simply dry the onion and garlic cloves in the oven, then grind them to a powder. Store it as a pantry staple and use it to give flavor to the dishes, just like you would use any spice. Homemade onion and garlic powder will prove that there is no need to ever buy pre-packaged onion powder from the grocery store again. Intense flavor with no additives…what’s not to love?

How To Make Garlic Powder

Making garlic powder is easier than you may think.

Peeling And Slicing Garlic

Using fresh garlic bulbs, peel the garlic and separate the cloves. Slice into thick slices.

Oven-Drying Garlic

Place them on a baking tray lined with parchment paper and bake at 160ºC (320ºF) for 50 minutes until it’s completely dry.

Grinding Garlic

Transfer the dried garlic to a blender and blend the garlic until you get garlic powder. Transfer the garlic to a glass jar and seal tightly.

How To Make Onion Powder

If you want to make onion powder at home, follow these few, simple steps.

Preparing and Dehydrating Onions

Peel the two onions and slice them thinly.

Oven-Drying Onions

Place the onion slices on a baking tray lined with parchment paper. Bake at 160ºC (320ºF) for 50 minutes until completely dry.

Grinding Dried Onions

Transfer the dried onions to a blender and grind until you get onion powder.

Can You Make Garlic And Onion Powder In Another Way?

Yes! There are more ways to dry the onions and garlic.

Using Food Dehydrator

To make the onion and garlic powder in a dehydrator, place the thin onion or garlic slices in a single layer in the dehydrator (make sure that they don’t overlap!).

Dehydrate at 150ºF/66ºC. The time will depend on the humidity. If you live in a humid area, it will take up to 8 hours, if you live in a dry area, it will take 4-6 hours. Once the onions and garlic are completely dry, you can blend them.

Using Air Drying

You can dry the onions and garlic without an oven or dehydrator by using natural sunlight. Simply place the onion or garlic slices on a baking sheet lined with a kitchen towel. Place in a sunny, well-ventilated area for a few days. This method works best in dry, hot areas.


To prevent clumping, add a few grains of rice (or beans) to the jar. They will absorb extra moisture and prevent the spice from clumping.

To dehydrate the onions or garlic in the microwave, lay the slices on a plate lined with kitchen paper. Microwave in 30-second increments until dry.

If they become too brown in the oven, place a layer of foil on top, or turn the oven down.

To make garlic or onion salt, mix 3 parts salt with 1 part onion or garlic.

How To Use Garlic And Onion Powder

Use the garlic and onion powder instead of fresh garlic or onion. Use in meat dishes, soups, stews, or dips.

How To Store Homemade Garlic And Onion Powder

Store the garlic and onion powder in an airtight glass jar in a cool, dry place (the kitchen cupboard is perfect!).

for the garlic powder
2 heads
for the onion powder
Red onions


For making the garlic powder: Cut several garlic cloves into thin slices.

Place them on a baking tray.

Bake at 160ºC (320ºF) for 50 minutes.

Transfer the dried garlic to a blender.

Blend the garlic until you get garlic powder.

Transfer the garlic powder into a glass and seal it.

For the onion powder: Cut two red onions into thin strips, and place them on a baking tray.

Bake at 160º C (320ºF) for 50 minutes.

Blend the onions until you get onion powder.

Transfer the garlic powder into a jar and seal tightly.

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