Description
This viral TikTok recipe for Onion Boil features a whole large sweet onion roasted to tender perfection with vegan butter, olive oil, and Cajun seasoning. Wrapped in foil and baked, the onion becomes juicy, flavorful, and slightly caramelized. Optional broiling gives it a golden, caramelized finish. Perfect as a side dish with rice, crispy chickpeas, or roasted vegetables, this simple yet delicious recipe highlights the natural sweetness of the onion with a savory kick.
Ingredients
Scale
Onion and Seasoning
- 1 large (15 ounce) sweet onion, peeled and ends trimmed off
- 1 tablespoon vegan butter
- 1 tablespoon extra virgin olive oil
- 1 teaspoon Cajun seasoning
- ¼ teaspoon salt (plus more to taste when serving)
- Optional additional seasonings: ¼ teaspoon garlic powder, ¼ teaspoon Old Bay seasoning
- Optional garnish: finely diced parsley leaves
Instructions
- Preheat the Oven: Preheat your oven to 375 degrees Fahrenheit to ensure it reaches the perfect temperature for roasting the onion evenly.
- Prepare the Onion: Use a small melon baller to scoop out the top center portion of the onion about one-third of the way down to create a well. Place the onion on a sheet of aluminum foil and add the vegan butter into the well.
- Season the Onion: Mix the Cajun seasoning, salt, olive oil, and any optional seasonings like garlic powder or Old Bay in a small bowl. Pour this seasoning mixture over the butter into the well, allowing it to drip down the sides of the onion to infuse flavor throughout.
- Wrap in Foil: Wrap the entire onion tightly in aluminum foil, sealing it completely. Place the wrapped onion in a small baking dish or cast iron skillet to catch any juices that may seep out during cooking.
- Roast the Onion: Place the baking dish on the center rack of the oven and roast for 1 hour. Afterward, carefully open the foil and check for tenderness; the onion should be fork-tender with a slightly caramelized exterior and a jiggle in the center. If more tenderness is desired, reseal and roast an additional 10 minutes before checking again.
- Optional Broil for Caramelization: For a golden, caramelized top layer, turn the oven to broil. Open the foil, drizzle additional melted vegan butter or olive oil on top, add a pinch more salt, and broil for 5-10 minutes, watching closely to prevent burning.
- Serve: Peel away the outermost onion layer and serve each tender layer with a sprinkle of salt if desired. Make sure to pour all the flavorful juices collected in the foil over the onion. Enjoy warm alongside rice, crispy chickpeas, or your favorite roasted vegetables.
Notes
- Store leftover roasted onion in an airtight container in the refrigerator once fully cooled to room temperature.
- Use vegan butter for a dairy-free version, or substitute with regular butter if preferred.
- Adjust seasonings to taste or add herbs like thyme for extra flavor.
- Be cautious when broiling to avoid burning the onion.
Nutrition
- Serving Size: 1/2 roasted onion
- Calories: 120
- Sugar: 8g
- Sodium: 350mg
- Fat: 7g
- Saturated Fat: 1.5g
- Unsaturated Fat: 5.5g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 3g
- Protein: 2g
- Cholesterol: 0mg
