Crispy Homemade Onion Rings

Updated August 30, 2026

Originally shared by Alisha Duncan. Homemade onion rings turn a few familiar ingredients into a crisp appetizer or side dish. Alisha first shared this panko-coated version after learning to fry foods at home. Her boys liked a little seasoning salt, while her husband preferred the optional hot-sauce version.

This update keeps Alisha’s original buttermilk batter and crunchy panko coating while making the ingredient divisions, oil temperature, and safety steps easier to follow.

Prep time: 15 minutes   Cook time: 2–3 minutes per batch   Serves: 2

Why this homemade onion-ring recipe works

• A light flour coating helps the wet batter cling to each onion ring.
• Buttermilk and egg make a batter that adheres well without hiding the onion.
• Panko supplies the coarse, crisp exterior.
• Frying in small batches helps the oil stay near 350°F (177°C), so the rings brown evenly instead of becoming greasy.
• Hot sauce is optional, making it easy to prepare a mild batch and a spicier batch from the same recipe.

If you prefer thinner pieces for burgers and casseroles, try TOTSFamily’s crispy fried onion strings.

Ingredients

• 2 large yellow onions
• 1 cup all-purpose flour, divided
• 2 teaspoons ground black pepper, divided
• 3/4 cup buttermilk
• 1 large egg
• 1/2 teaspoon baking powder
• 1/2 teaspoon paprika
• 2–3 tablespoons hot sauce, optional
• 1 1/2 cups panko breadcrumbs
• 1 teaspoon seasoning salt
• Canola, peanut, or vegetable oil for frying

Equipment

• Deep, heavy saucepan or Dutch oven
• Clip-on deep-fry or candy thermometer
• Three shallow bowls
• Tongs or a metal slotted spoon
• Wire rack set over a sheet pan, or a paper-towel-lined plate

How to make homemade onion rings

1. Trim and peel the onions. Slice them crosswise into 1/2-inch rounds, then gently separate the rounds into rings. Pat the rings dry so water cannot splatter in the hot oil.
2. Pour oil into a deep, heavy pan to a depth of about 2 inches, leaving plenty of space above the oil. Attach a thermometer and heat the oil to 350°F (177°C). Do not leave the pan unattended.
3. Set up three shallow bowls. In the first bowl, combine 1/2 cup flour with 1 teaspoon black pepper.
4. In the second bowl, whisk the remaining 1/2 cup flour, remaining 1 teaspoon black pepper, buttermilk, egg, baking powder, paprika, and optional hot sauce until mostly smooth.
5. In the third bowl, combine the panko and seasoning salt.
6. Working with a few rings at a time, coat each ring in the seasoned flour and shake off the excess. Dip it into the buttermilk batter, let the extra drip away, then press it gently into the panko.
7. Lower a small batch carefully into the hot oil. Do not crowd the pan. Fry for about 2–3 minutes total, turning once, until both sides are golden and the onion is tender. Let the oil return to 350°F between batches.
8. Transfer the rings to the rack or paper towels. Season while hot and serve promptly with your favourite dipping sauce.

These onion rings also work as a crunchy side for slider burgers and buns.

Frying safely

Hot oil can cause severe burns or a kitchen fire. The USDA recommends keeping the fryer or pan dry, avoiding overcrowding, never leaving frying food unattended, and keeping water away from hot oil. If a grease fire starts, never pour water on it. Turn off the heat if it is safe to do so, cover the pan with a metal lid or use an appropriate kitchen fire extinguisher, leave the area, and call emergency services when necessary. Review the USDA’s deep-fat-frying safety guidance before frying.

Troubleshooting

Why does the coating fall off?

Pat the onions dry, coat them first in flour, let excess batter drip away, and press the panko on gently. Move each ring carefully after breading.

Why are the onion rings greasy?

Oil that is too cool, or a crowded pan, slows browning and increases oil absorption. Fry in small batches and wait until the thermometer returns to 350°F before adding more rings.

Why are the rings browning too quickly?

Lower the heat and check the thermometer. If the coating darkens before the onion softens, the oil is too hot. Discard oil that smokes, foams excessively, or develops an off odour.

Can I omit the hot sauce?

Yes. Leave it out for a mild batch, or divide the batter and add hot sauce to only one portion.

Storage, reheating, and oil disposal

Onion rings are crispiest immediately after frying. Refrigerate leftovers within two hours, covered, and use them within three to four days. Reheat them in a 375°F oven or air fryer until hot and crisp. USDA guidance explains how to cool and store leftovers safely.

Let used oil cool completely before handling it. Strain it into a sealed, light-resistant container if you plan to reuse it, or place cooled oil in a sealed disposal container. Never pour cooking oil down the sink.