Roasted Lobster with Caramelized Onion and Garlic Butter
Prep
20 mins
Cook
35 mins
Servings
2
Difficulty
Medium
Here's a recipe I've been making all summer that absolutely impresses people without requiring much fuss. Roasted lobster with caramelized onion and garlic butter sounds fancy, but it comes together in just an hour, making it perfect for a special weeknight dinner or weekend entertaining. The lobster tails are easier to work with than whole lobsters, and garlic is packed with immune boosting properties that make this dish as nourishing as it is delicious. Rich caramelized onions add natural sweetness and depth, while a silky garlic butter brings everything together. You probably have most of these ingredients already, which means you can pull off something restaurant quality without breaking the bank.
Ella x
Ingredients
- 2lobster tails(8 oz each, split lengthwise)
- 3 mediumyellow onions(thinly sliced)
- 6 tablespoonsunsalted butter(divided)
- 4garlic cloves(minced)
- 2 sprigsfresh thyme
- 237 mldry white wine
- 1 teaspoonsea salt
- 1 teaspoonblack pepper(freshly ground)
- 1lemon(cut into wedges)
- 2 tablespoonsolive oil
- 2 tablespoonsvegetable broth
Detail level
Instructions
- 1
Preheat your oven to 400°F (200°C). Pat the lobster tails dry with paper towels and brush the flesh side with olive oil. Season generously with salt and pepper, then place skin-side down on a lined baking sheet.
Tip: Dry lobster ensures better browning and prevents steaming during roasting.
- 2
In a large skillet over medium heat, melt 3 tablespoons of butter. Add the sliced onions and a pinch of salt, stirring occasionally. Cook for 15-18 minutes until the onions are golden brown and caramelized, reducing heat to medium-low if needed.
Tip: Don't rush the caramelization process—low and slow creates the best flavor and sweetness.
- 3
When the onions are deeply caramelized, add the minced garlic and fresh thyme sprigs. Stir constantly for 1-2 minutes until fragrant, then deglaze the pan with white wine, scraping up any browned bits.
Tip: The wine adds acidity and complexity that balances the sweet caramelized onions.
- 4
Stir in the vegetable broth and remaining 3 tablespoons of butter until melted and combined. Simmer for 2 minutes, then season with salt and pepper to taste. Remove from heat and set aside.
Tip: This onion mixture can be made ahead and reheated gently when needed.
- 5
Place the lobster tails in the preheated oven and roast for 12-15 minutes, until the flesh is opaque and registers 140°F (60°C) at the thickest point. The meat should flake easily with a fork.
Tip: Cooking time varies by size; check smaller tails at 12 minutes to avoid overcooking.
- 6
Remove the lobster from the oven and let rest for 2 minutes. Divide the caramelized onions between two serving plates and top each with a roasted lobster tail.
Tip: Resting allows residual heat to finish cooking the lobster gently while keeping it moist.
- 7
Drizzle any remaining butter sauce from the onion skillet over the lobster and onions. Garnish with fresh thyme leaves if desired and serve immediately with lemon wedges on the side.
Tip: The bright lemon juice cuts through the richness of the butter and enhances the delicate lobster flavor.
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