Roasted Cod with Caramelized Onion and Thyme
Prep
15 mins
Cook
35 mins
Servings
4
Difficulty
Easy
Delicate flaky cod fillets nestled atop sweet caramelized onions and finished with crispy sage, creating a restaurant-quality dish that's surprisingly simple to prepare at home.
Ella x
Ingredients
- 4cod fillets(6 oz each, skin removed)
- 3 largeyellow onions(thinly sliced)
- 4 sprigsfresh thyme
- 12fresh sage leaves
- 4 tablespoonsextra virgin olive oil(divided)
- 3garlic cloves(minced)
- 2 tablespoonsbalsamic vinegar
- 1 teaspoonsea salt
- ½ teaspoonblack pepper
- 1lemon(cut into wedges)
- 59 mlvegetable broth
Detail level
Instructions
- 1
Preheat oven to 400°F (200°C). Heat 2 tablespoons of olive oil in a large oven-safe skillet over medium heat.
Tip: Use a skillet that can transition from stovetop to oven for easier cooking.
- 2
Add the sliced onions to the skillet and cook, stirring occasionally, for 8-10 minutes until they begin to soften and turn golden.
Tip: Don't rush this step; patient caramelization develops deeper, sweeter flavors.
- 3
Stir in the minced garlic and fresh thyme sprigs, cooking for another 2 minutes until fragrant.
- 4
Pour in the balsamic vinegar and vegetable broth, stirring to combine. Cook for 3 more minutes until slightly reduced, then remove thyme sprigs.
Tip: The liquid helps deglaze the pan and adds depth to the onions.
- 5
Push the caramelized onions to the sides of the skillet, creating a center space for the cod. Season cod fillets with salt and pepper on both sides.
- 6
Place cod fillets in the center of the skillet, nestling them among the onions. Drizzle with remaining 2 tablespoons of olive oil.
Tip: Arrange fillets with space between them for even cooking.
- 7
Transfer the skillet to the preheated oven and bake for 12-15 minutes until cod is opaque and flakes easily with a fork.
Tip: Cooking time depends on fillet thickness; don't overcook or the fish will dry out.
- 8
While cod roasts, heat a small skillet over medium-high heat. Add sage leaves and cook until crispy, about 1-2 minutes per side, then set aside on paper towels.
Tip: Crispy sage adds a wonderful textural and flavor contrast.
- 9
Remove skillet from oven and top each cod fillet with crispy sage leaves. Serve immediately with fresh lemon wedges on the side.
Tip: Squeeze fresh lemon juice over the dish just before eating for brightness.
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