Ingredients
— The Onions —
4 large Yellow or Vidalia onions (sweet onions work best)
— The Boil Sauce —
2 cups (4 sticks / 450g) unsalted butter
1 head garlic, cloves peeled and minced (about 10-12 cloves)
1 cup chicken or vegetable broth
2 tablespoons Old Bay seasoning
2 tablespoons Cajun or Creole seasoning
1 tablespoon paprika (smoked or sweet)
1 tablespoon lemon pepper seasoning
1 tablespoon brown sugar (to balance the heat)
1 tablespoon hot sauce (e.g., Louisiana or Tabasco)
1 lemon, juiced
— Optional Add-ins —
4-6 hard-boiled eggs, peeled (classic pairing)
Smoked sausage pieces
Shrimp (added in the last 10 minutes)
Instructions
1. **Preheat:** Preheat your oven to 400°F (200°C). Prepare a baking dish deep enough to hold the onions.
2. **Prep the Onions:** Peel the onions. Slice a small bit off the top and bottom so they sit flat. Use a melon baller or a small knife to carefully core out the center of each onion (about 1 inch deep), creating a small well. (Save the scooped-out onion for other recipes).
3. **Make the Sauce:** In a medium saucepan over medium heat, melt the butter. Add the minced garlic and sauté for 1 minute until fragrant.
4. Stir in the chicken broth, Old Bay, Cajun seasoning, paprika, lemon pepper, brown sugar, hot sauce, and lemon juice. Whisk well and let it simmer for 2–3 minutes. Taste and adjust heat/salt.
5. **Stuff & Assemble:** Place the onions in the baking dish. Arrange the hard-boiled eggs (if using) around the onions.
6. Pour the hot butter sauce generously over the onions, ensuring some sauce fills the hollowed-out centers.
7. **Wrap:** Cover the baking dish tightly with heavy-duty aluminum foil. You want to trap the steam to make the onions tender.
8. **Bake:** Bake for 60 minutes. Remove the foil.
9. **Baste & Finish:** Baste the onions generously with the butter sauce from the bottom of the dish. Return to the oven uncovered for another 15–20 minutes, or until the onions are fork-tender and slightly browned on top.
10. **Serve:** Serve hot, spooning the remaining spicy butter sauce over the onions and dipping the eggs in the liquid.
Notes
Onion Choice: Sweet Vidalia onions are the top choice as their natural sugars caramelize beautifully with the spicy Cajun seasoning. Yellow onions are a good second choice; avoid Red onions for this.
Stovetop Method: If you don’t want to use the oven, you can simulate a ‘boil’ by placing the onions and sauce in a large Dutch oven. Cover and simmer on low heat for 45-60 minutes, basting occasionally.
The Eggs: Adding hard-boiled eggs to the baking dish allows them to marinate in the butter sauce, turning them into ‘Cajun Eggs’—a delicious side.
Keto Friendly: This recipe is naturally low-carb and high-fat (Keto), making it a decadent indulgent meal.
- Prep Time: 15
- Cook Time: 75
- Category: Side Dish / Dinner
- Method: Oven / Boil
- Cuisine: Cajun / American
- Diet: Gluten Free