Onion Boil Recipe
Discover the viral Onion Boil recipe taking Pinterest and TikTok by storm! Easy to make, bold in flavor, and packed with savory spice — learn how to make this trend-worthy side dish with step-by-step instructions, kitchen tips, and full nutrition info. Perfect for food blogs, weeknight dinners, and comfort food lovers alike.
Ingredients
- 4 large sweet onions
- 4 tbsp unsalted butter
- 2 tbsp extra virgin olive oil
- 2 tsp Cajun seasoning
- 1 tsp Old Bay seasoning
- 1 tsp paprika
- ½ tsp garlic powder
- ¼ tsp salt to taste
- ¼ tsp ground black pepper to taste
Optional Add-Ins
- 1 bouillon cube for extra umami taste
- lemon zest for brightness
- chili flakes for heat
Instructions
- Start by peeling each onion, trimming the ends, and scooping out a small well in the center. This will house the butter and seasonings. You can use a small spoon or melon baller.
- In a small bowl, melt the butter and combine with olive oil, Cajun seasoning, Old Bay, paprika, garlic powder, salt, and pepper. Stir until well-blended.
- Place each onion on a sheet of aluminum foil. Spoon the butter seasoning mixture into the hollow cavity of each onion. Evenly distribute the mixture as best you can, allowing some to drip down the sides. If using, crumble a bouillon cube in for extra flavor.
- Wrap each onion snugly in the foil. Place in a baking dish or sheet pan. Roast in a preheated 375°F (190°C) oven for about 45–60 minutes, until the onions are fork-tender and fragrant.
- Unwrap carefully and broil for 5–10 minutes to caramelize the tops for added texture.
- Serve immediately and spoon the buttery seasoned juices over each onion. Sprinkle with fresh parsley for color.
Notes
🥗 Nutritional Value (Per Serving)
Below is an estimated nutrition card for one serving (1 whole onion with seasonings):| Nutrient | Amount |
|---|---|
| Calories | ~160 kcal |
| Total Fat | ~12g |
| Saturated Fat | ~7g |
| Carbs | ~14g |
| Fiber | ~3g |
| Protein | ~2g |
| Sodium | ~300mg |
| Sugar | ~6g |
| Vitamin C | ~15% DV |
| Values are approximate; for exact nutrition use a detailed calculator. |