Onion Boil (Viral TikTok Recipe) Recipe
This viral TikTok recipe for Onion Boil features a whole sweet onion seasoned, wrapped in foil, and roasted until tender and caramelized. The result is a soft, flavorful onion with a gooey center infused with vegan butter, olive oil, and Cajun seasoning. Perfect as a side dish or a flavor-packed addition to your meals, this simple and comforting onion roast offers layers of savory goodness that pair well with rice, chickpeas, or roasted vegetables.
- Prep Time: 10 minutes
- Cook Time: 1 hour 10 minutes
- Total Time: 1 hour 20 minutes
- Yield: 1 large roasted onion (serves 2-3 as a side) 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
- Diet: Vegan
Ingredients
Scale
Onion & Seasoning
- 1 large (15 ounce) sweet onion, peeled and ends trimmed off
- 1 teaspoon Cajun seasoning
- 1/4 teaspoon salt, plus more to taste when serving
- Optional additional seasonings: 1/4 teaspoon garlic powder, 1/4 teaspoon Old Bay seasoning
Fat & Oil
- 1 tablespoon vegan butter
- 1 tablespoon extra virgin olive oil
Garnish
- Optional: finely diced parsley leaves
Instructions
- Season 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.
- Add butter and seasonings: Put the vegan butter into the well. Mix the Cajun seasoning, olive oil, and any optional seasonings together, then pour this mixture over the butter into the well, allowing it to drip down the sides of the onion. Season the outside of the onion with the 1/4 teaspoon salt or more as desired.
- Wrap the onion: Tightly seal the entire onion in the aluminum foil. Place it in a small baking dish or cast iron skillet to catch any juices that may leak out during cooking.
- Roast the onion: Place the wrapped onion on the center rack of a preheated oven and roast at 400°F (204°C) for 1 hour. This will make the onion tender and slightly caramelized.
- Check for doneness: Remove the foil and check if the onion is fork-tender and the center jiggles. If it needs more time, rewrap and roast for an additional 10 minutes before checking again.
- Optional broil for extra caramelization: Turn the oven to broil. Open the foil, drizzle more melted vegan butter or olive oil, and add a pinch of salt. Broil the onion for 5-10 minutes, watching carefully to avoid burning, until the top layer is golden brown and caramelized.
- Serve: Peel away the outer layer and enjoy the tender layers underneath, seasoning each layer with extra salt if desired. Pour all the flavorful juices from the foil over the onion for maximum taste. Garnish with finely diced parsley if using, and serve hot with your favorite sides like rice or roasted vegetables.
Notes
- Use a watermelon baller or small spoon to remove the onion center to create space for the butter and seasonings.
- Ensure the onion is tightly wrapped in foil to trap steam and flavors during roasting.
- Adjust seasoning levels to your preference; Cajun seasoning adds a nice smoky-spicy note but can be omitted or substituted.
- The broiling step is optional but adds a lovely caramelized crust on top.
- This recipe works well with vegan butter but can be adapted with regular butter if dairy is not a concern.
- Serve immediately once done for best texture and flavor.
Keywords: roasted onion, baked onion, vegan side dish, caramelized onion, TikTok recipe, easy side dish
