If you’ve ever craved that irresistible crunch and savory bite of the original French’s fried onions but wished you could make them fresh at home, your wish is about to come true. This Copycat French’s Fried Onions From Scratch Recipe delivers the perfect golden, crispy onions with just the right balance of seasoning and texture. Not only will you know every ingredient going into these crunchy delights, but you’ll also have the satisfaction of whipping them up quickly to elevate casseroles, salads, or just snack straight from the bowl. Trust me, once you taste homemade fried onions this good, you’ll never want to buy the store-bought kind again!

Ingredients You’ll Need

The image shows a wooden cutting board on a white marbled surface, filled with thinly sliced white onions arranged loosely in layers. Behind the board to the left, there is a dark blue glass bowl filled with brown onion skins. To the right, there is a clear measuring cup filled with milk, placed on the white marbled surface. A small silver knife with a black handle rests on the cutting board near the sliced onions. Photo taken with an iphone --ar 4:5 --v 7

What’s great about this recipe is the simplicity of the ingredients and the magic they create together. Each item plays a crucial role: the buttermilk tenderizes and adds tang, the thinly sliced onions provide that signature crunch, the seasoned flour creates a crispy coating, and the vegetable oil ensures perfect frying. Here’s everything you need to gather before you start:

  • 2.5 cups Homemade (or store bought) Buttermilk: Softens and flavors the onions, ensuring a tender bite beneath the crunch.
  • 4 cups Thinly sliced onions, halved and rings of small onions: Choose fresh onions for the crispiest finish; slicing thinly helps them crisp faster and more evenly.
  • 3 cups All purpose flour: The coating base that crisps up beautifully when fried.
  • 1 tsp Kosher salt: Seasoning enhancer that highlights the onion’s natural sweetness.
  • 1/4 tsp Fresh ground pepper: Adds a subtle kick and balances the overall flavor.
  • 4 cups Vegetable oil: Neutral oil perfect for frying at high temperatures without burning the onions.

How to Make Copycat French’s Fried Onions From Scratch Recipe

Step 1: Soak the Onions

Start by soaking your thinly sliced onions in the buttermilk for at least 10 minutes. This step is essential because the acidity in the buttermilk gently tenderizes the onions and adds that tangy flavor that sets these fried onions apart from ordinary fried onions. Plus, it helps the flour coating stick better for that perfect crunch.

Step 2: Prepare the Flour Mixture

While your onions are soaking, mix your all purpose flour with kosher salt and freshly ground pepper in a shallow dish. This seasoned flour mixture is going to be your crispy crust, so make sure it’s well combined. The seasoning ensures the fried onions are flavorful right from the crust all the way through.

Step 3: Heat the Oil

In a large pan, heat the vegetable oil to 375 degrees Fahrenheit. If you don’t have a thermometer handy, here’s a classic test: dip the handle of a wooden spoon into the oil and if bubbles form around it, that means your oil is ready for frying. Proper oil temperature is the secret to perfectly fried onions that are golden and crispy without absorbing too much oil.

Step 4: Coat and Fry the Onions

Take your buttermilk-soaked onions and dredge them in the flour mixture until they’re thoroughly coated. Then carefully add them to the hot oil in batches—avoid crowding the pan so the onions fry evenly and stay crisp. Fry until the onions turn golden brown then remove with a slotted spoon and drain on a paper towel-lined plate to soak up any excess oil. Repeat until all the onions are fried, adding more paper towels as needed to keep them dry and crunchy.

Step 5: Cool and Store

If you aren’t using your fried onions immediately, let them cool completely and then store them in an airtight container in a cool, dry place. They’ll keep their crispy magic for a few days, although honestly, they’re best enjoyed fresh!

How to Serve Copycat French’s Fried Onions From Scratch Recipe

A white plate holds a heap of crispy fried onion rings that are golden brown with some darker edges, showing a crunchy texture. The rings are uneven in size and stacked loosely in the center of the plate. The background shows green beans and whole brown mushrooms slightly out of focus on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

These crispy fried onions make the perfect garnish for enhancing the look and flavor of dishes. Sprinkle them atop green bean casseroles, creamy mashed potatoes, or even Mac and cheese for an extra crunch that takes comfort food to the next level. They also add a beautiful golden color that’s as appetizing as their taste.

Side Dishes

Consider pairing these fried onions with roasted vegetables, grilled meats, or salads to introduce a delightful texture contrast. They work brilliantly as a side on burger plates or alongside baked chicken, delivering that added layer of flavor and crunch that perfectly complements a wide variety of meals.

Creative Ways to Present

Why not get adventurous? Use your copycat fried onions as a crispy topping on avocado toast or mix them into your favorite dips for extra bite. They’re also fantastic sprinkled over creamy soups or folded into stuffing recipes for a savory twist. The possibilities are endless when you have this homemade goodness on hand!

Make Ahead and Storage

Storing Leftovers

Once cooled completely, store any leftover fried onions in an airtight container at room temperature, away from moisture. Keeping them dry is key to maintaining that signature crisp crunch. They should last for several days, making them perfect for quick meal add-ons or snacks.

Freezing

To freeze your homemade fried onions, spread them in a single layer on a baking sheet and freeze until firm. Then transfer to a freezer-safe container or bag. This method prevents clumping and helps retain their crunch. When you’re ready to use them, just thaw briefly and crisp up in a toaster oven or skillet.

Reheating

Reheating works best in a hot oven or skillet rather than the microwave, which can soften the coating. Spread your fried onions on a baking sheet and bake at 350 degrees Fahrenheit for a few minutes until crisp again. This brings back that fresh-out-of-the-fryer texture and flavor you love.

FAQs

Can I use a different type of onion for this recipe?

Absolutely! While small yellow onions or sweet onions work best for that classic flavor and texture, you can experiment with red or even shallots. Just keep them thinly sliced so they fry up crisp and evenly.

Is buttermilk essential or can I substitute it?

Buttermilk adds a subtle tang and tenderizes the onions beautifully, but if you don’t have any on hand, you can make a quick substitute by adding a tablespoon of white vinegar or lemon juice to a cup of milk and letting it sit for 5 minutes.

How do I know when the oil is at the right temperature?

The wooden spoon test is a great trick: when you dip the handle of a wooden spoon or chopstick into the oil and bubbles form steadily around it, the oil is hot enough for frying at around 375 degrees Fahrenheit.

Can I bake the onions instead of frying?

Baking won’t achieve quite the same crispiness and golden color that frying offers, but you can try tossing the coated onions on a baking sheet and baking at a high temperature with a drizzle of oil. Just keep a close eye to prevent burning.

How long do homemade fried onions last?

Stored in an airtight container in a cool, dry spot, they stay crispy for about 2 to 3 days. After that, the risk of sogginess increases, so it’s best to enjoy them fresh or properly re-crisp when needed.

Final Thoughts

There’s something magical about making your own fried onions from scratch. This Copycat French’s Fried Onions From Scratch Recipe captures that beloved crunchy, savory taste with just a handful of simple ingredients and straightforward steps. Whether you’re topping casseroles, jazzing up salads, or just snacking straight from the bowl, these fried onions deliver a homemade touch you’ll be proud of. I can’t wait for you to try them—you might just find yourself wondering how you ever lived without making them yourself!

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Copycat French’s Fried Onions From Scratch Recipe

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4.1 from 13 reviews

This recipe recreates the crispy, flavorful French’s Fried Onions from scratch using fresh onions, buttermilk, and a seasoned flour coating. Perfect as a crunchy topping for casseroles, salads, and more, these homemade fried onions deliver the same satisfying crunch and taste as the classic store-bought variety.

  • Author: Chef
  • Prep Time: 10 minutes
  • Cook Time: 10 minutes
  • Total Time: 20 minutes
  • Yield: 15 servings
  • Category: Snack/Topping
  • Method: Frying
  • Cuisine: American

Ingredients

Onion Soak

  • 2.5 cups Homemade or store-bought buttermilk
  • 4 cups thinly sliced onions (halves and rings of small onions)

Coating

  • 3 cups all-purpose flour
  • 1 tsp kosher salt
  • 1/4 tsp fresh ground pepper

Frying

  • 4 cups vegetable oil

Instructions

  1. Soak Onions: Soak the thinly sliced onions in buttermilk for at least 10 minutes to help the flour mixture adhere and add moisture.
  2. Prepare Flour Mixture: In a shallow dish, combine the all-purpose flour, kosher salt, and freshly ground pepper. Mix thoroughly to evenly distribute the seasoning.
  3. Heat Oil: Pour vegetable oil into a large pan and heat it to 375°F (190°C). Test the oil’s readiness by dipping the handle of a wooden spoon into the oil; if bubbles form around the handle, the oil is hot enough for frying.
  4. Coat and Fry Onions: Dredge the buttermilk-soaked onions in the seasoned flour mixture until well coated. Fry the coated onions in batches, avoiding overcrowding, until they turn golden brown. Use a slotted spoon to remove the fried onions and drain them on paper towel-lined plates to absorb excess oil. Continue frying all onions, replacing lined plates as needed to keep the onions crispy.
  5. Store or Serve: Use the fried onions immediately for maximum crispiness or store them in an airtight container in a cool, dry place for up to a few days.

Notes

  • Ensure the oil maintains 375°F for optimal crispiness and to prevent soggy onions.
  • Slicing onions uniformly helps achieve even cooking and consistent texture.
  • Use small onions or pearl onions for best results and classic appearance.
  • Be careful not to overcrowd the pan, as this lowers oil temperature and leads to greasy onions.
  • These fried onions make an excellent topping for green bean casseroles, salads, and burgers.

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