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Close up of an onion boil
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Onion Boil

A sweet Vidalia onion is coated with butter, spices, and garlic then baked in foil in this Onion Boil recipe. A simple & versatile side dish!
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Side Dish
Cuisine: American
Keyword: onion boil, onion boil recipe
Servings: 1 serving

Ingredients

  • 1 large Vidalia onion (or other sweet onion)
  • 1 tablespoon cubed butter
  • 1 & 1/2 tablespoons melted butter
  • 1 small garlic clove , minced
  • 1 teaspoon brown sugar
  • 1/4 teaspoon coarse salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon dried oregano
  • 1/4 teaspoon smoked paprika
  • 1/4 teaspoon old bay

Instructions

  • Slice off the ends of 1 large Vidalia onion, then remove the skin and the first layer.
  • Using an apple corer or knife, remove the heart/center of the onion, creating a well (but don’t cut all the way through.)
    Overhead view of an onion and a corer on a cutting board
  • Transfer the onion to a large piece of foil and roughly crimp up the sides, to create a packet.
  • Place a tablespoon of cubed butter inside the well of the onion.
    A raw onion with butter in the center in foil
  • In a small bowl, whisk together 1 & 1/2 tablespoons melted butter, 1 small minced garlic clove, 1 teaspoon brown sugar, 1/4 teaspoon EACH coarse salt, black pepper, dried oregano, smoked paprika, and old bay seasoning; pour over the top of the onion.
    Pouring melted butter with spices over a raw onion in foil
  • Wrap the onion up tightly in the foil, then transfer to a rimmed baking sheet or small casserole dish.
    An onion wrapped in foil on a plate
  • Bake at 375F for 1 hour.
  • Carefully unwrap the foil (the steam will be HOT!) - transfer onion to a serving plate and pour the juice from the foil over the top. Enjoy!
    Three onion boils on a serving platter

Notes

This recipe is versatile if you'd like to play around with different seasonings.

Nutrition

Calories: 382kcal | Carbohydrates: 31g | Protein: 3g | Fat: 29g | Saturated Fat: 18g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 75mg | Sodium: 835mg | Potassium: 448mg | Fiber: 4g | Sugar: 21g | Vitamin A: 1149IU | Vitamin C: 17mg | Calcium: 100mg | Iron: 1mg