Onion Boil

Picture this: the warm, inviting aroma of a sweet onion roasting slowly in the oven, filling your home with a delicious scent. I remember the first time I made Onion Boil; it was a cozy evening, and I wanted to try something different. This simple dish quickly became a favorite for its incredible flavor and comforting nature. It truly matters because it shows how a humble onion can transform into something special. The beauty of Onion Boil lies in its ease and the joy it brings when shared with family and friends.

why make this recipe

Onion Boil is incredibly simple yet packed with flavor. It’s a great way to enjoy the natural sweetness of onions, which caramelize beautifully in the oven. This dish is perfect for gatherings or as a side for your dinner. With just a few ingredients, you can create something that impresses without much effort. Plus, it’s a vegan-friendly option that everyone can enjoy.

how to make Onion Boil

Ingredients:

  • 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
  • 1/4 teaspoon salt (plus more to taste when serving each layer)
  • Optional additional seasonings: 1/4 teaspoon garlic powder, 1/4 teaspoon old bay seasoning
  • Optional garnish: finely diced parsley leaves

Directions:

  1. Use a small melon baller to scoop out the top center portion of the onion (about 1/3 of the way down) to make a well in the center.
  2. Place the onion on a sheet of aluminum foil and add the butter into the well.
  3. Mix the seasonings with the olive oil and pour over the butter into the well, allowing the oil and seasoning mixture to drip down the sides of the onion.
  4. Season with salt and any additional seasonings desired.
  5. Seal the entire onion tightly in the aluminum foil and place it in a small baking dish or cast iron skillet to catch any oil that seeps out of the foil.
  6. Remove from the oven and open the foil to check on the onion. The entire onion should be fork-tender and the center should jiggle. It should also be slightly caramelized. If it needs more time to cook, simply reseal the foil and pop it back in the oven for another 10 minutes and recheck after that.
  7. Turn the oven to broil. Open the foil and drizzle more melted butter (or olive oil) and an extra pinch of salt. Broil for 5-10 minutes, watching closely to avoid burning. This will give the onion a golden brown caramelized exterior on top.
  8. Peel away the outer layer and then enjoy each layer beneath that with an extra sprinkle of salt if desired. Be sure to pour all the juices from the foil over top the onion when serving to maximize flavor. I love to serve this with rice, crispy chickpeas, and other roasted veggies like these crispy Brussels sprouts. Enjoy while hot.

how to serve Onion Boil

Onion Boil can be served as a main dish or a side. It pairs wonderfully with rice, grains, or roasted vegetables. You can also enjoy it with crusty bread to soak up the delicious juices. For garnish, sprinkle finely diced parsley on top for a fresh touch.

how to store Onion Boil

If you have any leftovers, you can store them in an airtight container in the fridge for up to 3 days. To reheat, place the onion back in the oven at a low temperature until warmed through. You can also microwave it if you’re in a hurry.

tips to make Onion Boil

  • Make sure to choose a sweet onion for the best flavor.
  • You can adjust the seasoning to your taste. Add more spices if you like it spicy!
  • Try to seal the foil tightly to keep in all the flavors.
  • Don’t rush the process. Allowing the onion to cook properly results in better caramelization.

variation

You can experiment with different seasonings to match your taste. Try adding herbs like thyme or rosemary for a different flavor profile. If you prefer a smokier flavor, add some smoked paprika.

FAQs

Can I use other types of onions?

Yes, while sweet onions are best for their flavor, you can use white or yellow onions. Just remember that the taste will be slightly different.

Is Onion Boil a good dish for meal prep?

Absolutely! It can be made ahead of time and reheated, making it a great option for your meal prep.

What can I serve with Onion Boil?

Onion Boil goes well with grains like rice or quinoa, roasted vegetables, or even as a savory topping for burgers or sandwiches.

Onion Boil

A simple and flavorful dish showcasing sweet onions roasted to perfection with vegan butter and seasonings.
Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Servings: 4 servings
Course: Main Course, Side Dish
Cuisine: American, Vegan
Calories: 120

Ingredients

Main Ingredients

  • 1 large sweet onion, peeled and ends trimmed off Choose a sweet onion for the best flavor.
  • 1 tablespoon vegan butter Can substitute with olive oil for a lighter option.
  • 1 tablespoon extra virgin olive oil
  • 1 teaspoon cajun seasoning Adjust to taste.
  • 1/4 teaspoon salt Plus more to taste when serving.

Optional Seasonings and Garnish

  • 1/4 teaspoon garlic powder Optional for added flavor.
  • 1/4 teaspoon old bay seasoning Optional for additional taste.
  • finely diced parsley leaves Optional garnish.

Method

Preparation

  • Use a small melon baller to scoop out the top center portion of the onion (about 1/3 of the way down) to make a well in the center.
  • Place the onion on a sheet of aluminum foil and add the butter into the well.
  • Mix the seasonings with the olive oil and pour over the butter into the well, allowing the oil and seasoning mixture to drip down the sides of the onion.
  • Season with salt and any additional seasonings desired.

Cooking

  • Seal the entire onion tightly in the aluminum foil and place it in a small baking dish or cast iron skillet to catch any oil that seeps out.
  • Remove from the oven and open the foil to check on the onion. The entire onion should be fork-tender and the center should jiggle. If it needs more time, reseal and return it to the oven for another 10 minutes.
  • Turn the oven to broil. Open the foil, drizzle more melted butter (or olive oil) and an extra pinch of salt. Broil for 5-10 minutes, watching closely to avoid burning.

Serving

  • Peel away the outer layer and enjoy each layer beneath it with an extra sprinkle of salt if desired. Pour all the juices from the foil over the onion when serving.

Nutrition

Serving: 1gCalories: 120kcalCarbohydrates: 12gProtein: 1gFat: 7gSaturated Fat: 1gSodium: 200mgFiber: 1gSugar: 2g

Notes

Onion Boil can be served as a main dish or a side. Pairs well with rice, grains, or roasted vegetables. Store leftovers in an airtight container in the fridge for up to 3 days.
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