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Fried Onions Recipe

Fried onions are easy to make at home as a tasty snack to munch on, a great addition to a burger, and the perfect topping for green bean casserole.

Homemade fried onions on a white plate on a white marble counter

Living abroad I don’t have easy access to fried onions like I did in the States.

If I looked hard enough I could probably find them but at a large mark up. So, I’ve started making my own fried onions at home and I’m glad I do!

Fried onions are easy to make and I like knowing exactly whats in the food I’m serving.

It’s also nice because it makes my green bean casserole look prettier and more impressive.

Really, who doesn’t like the ohs and ahs that come from guests, especially when it didn’t take much effort? I certainly do.


I use neutral oils like canola oil, safflower oil, sunflower oil, and vegetable oil.   


You can use any preferred unsweetened dairy free milk.

I use coconut milk because I already have a can open when making dairy free green bean casserole.

However, you can use oat milk, almond milk, and can probably even get away with using water.


Gluten Free All Purpose Flour

This is probably the most popular option.

Since you don’t need to worry about anything rising like in baking or using it as a thickener like with sauces, you can use it fine here. Substitute cup for cup.


Potato starch, cornstarch, and tapioca starch can be use instead of flour for frying.

Potato starch is actually used to make Japanese fried chicken called karaage. While cornstarch is sometimes used in Southern fried chicken recipes to make them extra crisp.

This is one of my favorite substitutes for flour.

Substitute cup for cup.

Make sure the starches are gluten free so you don’t have to worry about cross contamination during production.


Rice flour can also be used and can be found in most Asian and health food stores. 

White rice flour has a mild flavor and doesn’t change the color of the muffin or quick bread. 

Since it doesn’t have much flavor it is best to use it with ingredients that do. Substitute cup for cup.


I once tried making a batter first to then dip the onions in. Instead I got a ball of dough I threw out before going back to following my own instructions.

Yield: 8 onces

Fried Onions

Homemade fried onions on a white plate on a white marble counter

These fried onions are a great for topping Green Bean Casserole or to enjoy as a fun snack.


  • 1 ½ cup all purpose flour
  • 1/2 teaspoon salt
  • 2 small onions, thinly sliced
  • 2 tablespoons water
  • Oil for frying


  1. In a large mixing bowl whisk together flour and salt.
  2. Toss onion slices until well coated.
  3. Sprinkle water.  Mix until onions are coated in a kind of batter.
  4. Heat oil in a pot.  To test to see if your oil is ready for frying, drop a piece of onion or batter in.  If the if floats and fries then the oil is ready.  
  5. Drop in onions one at a time until you have a batch.  Frying in until golden brown. Remove with a slotted spoon and repeat.


These are easy to make gluten free use to top gluten free Green Bean Casserole.

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