Onion Boil is a delightful dish that showcases the humble onion in a flavorful and healthy way. This popular dish of boiled onions is delicious and spicy with a buttery flavor. It’s a perfect, easy to prepare, and healthy side dish for any meal. I love how simple it is to make and how it elevates any dinner table with its aromatic essence.
Why You’ll Love This Onion Boil
This recipe is a fantastic addition to your cooking repertoire for numerous reasons. Firstly, it allows you to enjoy the rich, buttery flavor of cooked onions without excessive calories. Each serving contains only 156 calories, making it a guilt-free side. Secondly, this dish can easily fit into a vegetarian diet, making it versatile for various meal plans. Thirdly, the use of Cajun and Old Bay seasonings adds a spicy kick that brings life to your taste buds. Moreover, boiled onions provide an array of health benefits, including improved digestion and a boost to your immune system. Using onions in your cooking methods not only enhances flavor but also offers nutritional value, such as antioxidants and vitamins. Learn more about the health benefits of onions.
Ingredients for Onion Boil
Gather these items:
- 1 large yellow onion
- ½ teaspoon Cajun seasoning
- ½ teaspoon Old Bay seasoning
- ¼ teaspoon kosher salt
- ¼ teaspoon dried parsley
- ¼ teaspoon garlic powder
- ⅛ teaspoon black pepper
- 1 tablespoon butter, melted
How to Make Onion Boil Step-by-Step
- Step 1: Preheat the oven to 375°F. Cut the ends off the onion. Use a sturdy spoon or a melon cutter to scoop out the onion flesh about halfway through.
- Step 2: Place the onion in the center of a large piece of aluminum foil on a rimmed baking sheet. Combine the Cajun seasoning, Old Bay seasoning, salt, parsley, garlic powder, and pepper, then sprinkle half of the mixture over the onion. Pour the butter into the center and cover with the remaining seasoning.
- Step 3: Lift the edges of the aluminum foil and press them down tightly to form an airtight wrap.
- Step 4: Bake for 45 to 50 minutes, or until the onions are soft when lightly pressed. Then, remove from the oven and carefully open the foil to avoid escaping hot steam. Serve while warm and delicious.
Pro Tips for the Perfect Onion Boil
Keep these in mind:
- Use fresh onions for the best flavor.
- Monitor the baking time closely to ensure the onions are perfectly tender.
- This dish is best served immediately, but you can also store leftovers in the fridge.
Best Ways to Serve Onion Boil
There are several delightful ways to enjoy your Onion Boil. This dish pairs beautifully with grilled meats, making it a perfect complement to a summer barbecue. You can also serve it alongside rice or quinoa for a nutritious vegetarian meal. Additionally, consider adding it to a salad for a unique twist on flavor.

How to Store and Reheat Onion Boil
To store leftovers, place them in an airtight container and refrigerate. When you’re ready to enjoy them again, simply reheat in the oven or microwave until warmed through. This makes it a convenient meal prep option!
Frequently Asked Questions About Onion Boil
What’s the secret to perfect Onion Boil?
The secret lies in choosing fresh, high-quality onions and ensuring they are well-seasoned before wrapping them in foil. This allows the flavors to meld beautifully during baking.
Can I make Onion Boil ahead of time?
Yes, you can prep the onions in advance. Simply wrap them in foil, then bake them when you’re ready to serve. This helps save time during busy meal preparations.
How do I avoid common mistakes with Onion Boil?
To avoid soggy onions, ensure they are wrapped tightly in foil to trap steam, but not so tightly that they crush. Monitor the baking time to achieve the right softness.
Variations of Onion Boil You Can Try
Feel free to experiment with your Onion Boil. You can add cheese for a creamy twist or include other vegetables like bell peppers or garlic cloves for added flavor. Another variation is to use different types of onions, like red or sweet onions, to change the taste profile. Explore more side dish ideas.
Onion Boil: 7 Reasons You’ll Love This Healthy Side Dish
- Total Time: 55 minutes
- Yield: 1 serving 1x
- Diet: Vegetarian
Description
This popular dish of boiled onions is delicious and spicy with a buttery flavor. It’s a perfect, easy to prepare, and healthy side dish for any meal.
Ingredients
- 1 large yellow onion
- ½ teaspoon Cajun seasoning
- ½ teaspoon Old Bay seasoning
- ¼ teaspoon kosher salt
- ¼ teaspoon dried parsley
- ¼ teaspoon garlic powder
- ⅛ teaspoon black pepper
- 1 tablespoon butter, melted
Instructions
- Preheat the oven to 375°F. Cut the ends off the onion. Use a sturdy spoon or a melon cutter to scoop out the onion flesh about halfway through.
- Place the onion in the center of a large piece of aluminum foil on a rimmed baking sheet. Combine the Cajun seasoning, Old Bay seasoning, salt, parsley, garlic powder, and pepper, then sprinkle half of the mixture over the onion. Pour the butter into the center and cover with the remaining seasoning.
- Lift the edges of the aluminum foil and press them down tightly to form an airtight wrap.
- Bake for 45 to 50 minutes, or until the onions are soft when lightly pressed. Then, remove from the oven and carefully open the foil to avoid escaping hot steam. Serve while warm and delicious.
Notes
- Prep Time: 10 minutes
- Cook Time: 45-50 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 onion
- Calories: 156
- Sugar: 2 grams
- Sodium: 300 milligrams
- Fat: 12 grams
- Saturated Fat: 7 grams
- Unsaturated Fat: 5 grams
- Trans Fat: 0 grams
- Carbohydrates: 12 grams
- Fiber: 1 gram
- Protein: 2 grams
- Cholesterol: 30 milligrams
Keywords: Onion Boil