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Air Fryer French Onion Dip - Creamy, Caramelized, and Crowd-Pleasing

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Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings: 8 servings
Ingredients Method

Ingredients
  

  • 3 large yellow onions, thinly sliced
  • 2 tablespoons olive oil or avocado oil
  • 1 teaspoon kosher salt, divided (plus more to taste)
  • 1/2 teaspoon freshly ground black pepper
  • 1/2 teaspoon garlic powder
  • 1/4 teaspoon onion powder (optional, for a more “classic” dip vibe)
  • 1 teaspoon Worcestershire sauce
  • 1 teaspoon low-sodium soy sauce or 1/2 teaspoon white miso paste
  • 1 teaspoon balsamic vinegar or sherry vinegar (for brightness)
  • 1 cup sour cream
  • 1/2 cup plain Greek yogurt (2% or whole milk)
  • 2 tablespoons mayonnaise
  • 2 tablespoons finely chopped fresh chives (plus more for garnish)
  • Optional: pinch of cayenne or a few dashes hot sauce

Method
 

  1. Prep the onions: Slice onions thinly from root to stem. Toss with olive oil, half the salt, and black pepper until well coated.
  2. Air fry the onions: Spread onions in an even layer in your air fryer basket. Cook at 320°F (160°C) for 25–35 minutes, stirring every 8–10 minutes. If edges brown too fast, reduce to 300°F (150°C). Onions should be soft, golden, and jammy.
  3. Season and finish the onions: While still warm, stir in garlic powder, onion powder, Worcestershire, soy (or miso), and vinegar. Adjust salt and pepper. Let cool to room temperature.
  4. Make the creamy base: In a bowl, combine sour cream, Greek yogurt, and mayonnaise. Mix until smooth.
  5. Combine: Fold cooled onions into the creamy base. Add chives and taste. Add more salt, pepper, or a pinch of cayenne/hot sauce if you like a little heat.
  6. Chill: Cover and refrigerate for at least 1 hour, ideally 2–4 hours. This helps flavors meld and the dip thicken slightly.
  7. Serve: Garnish with more chives. Serve with kettle-cooked chips, carrot sticks, celery, cucumbers, radishes, pretzels, or toasted baguette slices.