How to make Onion Powder

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5 from 2 votes

Let's take a look at the easy process for how to make onion powder at home with a food dehydrator or using your oven.

Prep Time5

Cook Time8

Total Time8 5

Course: Seasoning

Cuisine: American

Calories: 120kcal

Author: Fox Valley Foodie

Equipment

Ingredients

2 large yellow onions

Instructions

Peel your onions and discard the flaky skin. Then chop the onion into small squares, or into long thin slices.
Place the chopped onion on your dehydrator trays in a single layer, being careful not to overcrowd everything.
Set the dehydrator to 150 degrees and dehydrate for 8 hours or until completely dried.
Place the dried onion into a spice grinder and pulse until the onion is a fine powder. Then store in an airtight spice jar until ready to use.

Notes

Oven method: This can be done in an oven as well, but most ovens don't go down to 150 degrees. Instead, set your oven to 175 degrees and cook for 5 hours. If your oven doesn't go that low, simply set it at its lowest temperature and prop open the oven door with a towel to let some excess heat out as the onions dry. I also recommend setting the onion pieces on parchment paper so they don't stick to your baking sheet at the end of the cooking process.

Each large onion will yield approximately ¼ cup of dried onion powder.

The exact drying time will vary depending on the size of your onion pieces and the moisture content of the onion.

Nutrition