Elevate your side dish game with this incredible recipe for Air Fryer Onions. Offering 4 servings and a speedy prep time of just 10 minutes, this vegetarian and gluten-free delight showcases the magic of the air fryer. With a cooking time of 18 to 20 minutes, these onions are transformed into a tender and flavorful dish that’s perfect to accompany grilled steak or barbecued meat. Whether you’re hosting a gathering or preparing a special dinner, these seasoned onions with melted Gruyère cheese take your meal to the next level with minimal effort.
Yield: 4 servings
Prep Time: 10 minutes
Cooking Time: 18–20 minutes
Total Time: 28–30 minutes
INGREDIENTS:
- 2 yellow onions (Vidalia or 1015 recommended)
- Salt and pepper
- ¼ teaspoon ground thyme
- ¼ teaspoon smoked paprika
- 2 teaspoons olive oil
- 1 ounce Gruyère cheese, grated
INSTRUCTIONS:
- Onion Prep: Start by peeling the yellow onions and halving them. These halves will form the base of your flavorful dish.
- Seasoning: Sprinkle the cut sides of the onion halves with salt, pepper, ground thyme, and smoked paprika. These seasonings will infuse the onions with a delightful blend of flavors.
- Aluminum Foil Preparation: Place each onion half, cut side up, on a large square of aluminum foil. Gently pull up the sides of the foil to cup around the onion. Drizzle the cut surface of the onions with olive oil.
- Seal the Foil: Crimp the top of the foil to seal it closed, creating a little onion package. This will allow the onions to cook and steam in their own flavorful juices.
- Air Fryer Cooking: Place the wrapped onions in the air fryer basket. Cook them at 390°F for 18 to 20 minutes. The onions should become soft enough to be pierced with a fork while still retaining a slight firmness.
- Cheesy Finish: Carefully open the foil just enough to sprinkle each onion with the grated Gruyère cheese. The heat of the onions will help melt the cheese.
- Final Cheese Melting: Continue cooking the onions for an additional 30 seconds to 1 minute. This brief cooking time will melt the cheese and create a delectable, gooey topping for your seasoned onions.
NOTE:
- When placing the wrapped onions in the air fryer, ensure there’s enough space between the foil and the heating coils at the top of the air fryer. If needed, trim any excess foil to prevent it from touching the coils.
With this recipe, you’re transforming simple onions into an irresistible side dish that’s bursting with flavor. The tender, seasoned onions with melted Gruyère cheese take your dining experience to new heights without requiring extensive effort. Incorporate these onions into your meal to savor the delectable combination of flavors and textures that this recipe brings to the table.




