How to Make Onion Powder

A small bowl with onion powder and a big bowl of dehydrated onion flakes at the back.

Have you ever opened your pantry, only to find that you're out of onion powder? It’s one of those staples that we use all the time, but sometimes forget to restock. That’s why I love making my own onion powder at home. Not only do I know exactly what’s in it—just onions, no fillers—but it’s also super easy to make, especially in small batches.

Course Pantry

Cuisine American, International

Keyword dehydrator, dry, homemade onion powder, make onion powder, onion, onion powder

Prep Time 5

Cook Time 6

Servings Portions

Calories 15kcal

Author Zuzana Paar

Equipment

1 Dehydrator
1 Magic Bullet

Ingredients

1 Onion
Water

US Customary - Metric

Instructions

Start by peeling your onions and giving them a quick rinse under cold water. Pat them dry with a towel to remove any excess moisture.
Chop the onions thinly so they dry evenly. Spread the chopped onion out on dehydrator trays or a baking sheet if using an oven. Make sure there’s space between the slices so air can circulate.
Once your onions are fully dried and crisp, place them in your grinder or blender and pulse until they turn into a fine powder. If any larger pieces remain, sift them out and grind them again.
To preserve the onion flavor, transfer your freshly ground onion powder into a container. A small glass jar or airtight container works well for keeping the powder fresh and dry.

Notes

When making your own onion powder, make sure your onions are fully dried before grinding to avoid clumping.
The best way to preserve onion powder is to store onion powder in an airtight container to maintain its freshness and flavor.
Use a high-quality grinder to get a fine, even powder for the best texture in your cooking.
A coffee grinder can be used to make onion and garlic powder
When scooping out the powder, use a dry spoon to avoid introducing moisture into the container.

Nutrition