Description
Onion boil is a tender, caramelized onion roasted with butter, olive oil, and spices. Perfect for weeknight dinners, vegetarian meals, or as a creative side dish. Easily made vegan, gluten-free, or nut-free.
Ingredients
For the Onion:
– 1 large sweet onion (15 oz., peeled and trimmed)
– 1 tbsp vegan butter (substitute regular butter for non-vegan diets)
– 1 tbsp extra virgin olive oil
For Seasoning:
– 1 tsp Cajun seasoning (substitute paprika, garlic powder, and black pepper for similar results)
– ¼ tsp salt (plus more to taste)
– Optional: ¼ tsp garlic powder
– Optional: ¼ tsp Old Bay seasoning
For Garnish (Optional):
– Finely diced parsley leaves
Instructions
- Preheat oven to 375°F (190°C).
- Use a small melon baller to scoop out the top center portion of the onion (about ⅓ of the way down) to create a well. Place the onion on a sheet of aluminum foil.
- Add vegan butter into the well. Mix seasonings with olive oil and pour over the butter, allowing the mixture to drip down the sides. Season with salt and any additional seasonings desired.
- Wrap the onion tightly in aluminum foil and place it in a small baking dish or cast iron skillet to catch any drippings.
- Roast on the center rack of the oven for 1 hour. Check for doneness; if needed, reseal the foil and bake for another 10 minutes.
- Turn the oven to broil. Open the foil, drizzle with melted butter or olive oil, and sprinkle with extra salt. Broil for 5–10 minutes, watching closely to avoid burning, until golden brown.
- Peel away the outer layer and enjoy each layer beneath, sprinkling with additional salt if desired. Pour all juices from the foil over the onion for maximum flavor.
Notes
– Use sweet onions: This ensures optimal sweetness and tenderness. Substitute red onions or shallots for variety.
– Storage: Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F (175°C) for 5–10 minutes to restore texture. Avoid microwaving if possible.
– Customizations: Add smoked paprika, chili flakes, or balsamic glaze for added complexity. Sprinkle toasted nuts or grated Parmesan for extra flair.
- Prep Time: 10 minutes
- Cook Time: 1 hour 15 minutes
- Category: Side Dish / Vegetarian
- Method: Roasting
- Cuisine: American / Creative Sides
Nutrition
- Serving Size: 1 serving
- Calories: ~150
- Sugar: 8g
- Sodium: 200mg
- Fat: 10g
- Saturated Fat: 3g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 15g
- Fiber: 3g
- Protein: 2g
- Cholesterol: 0mg