There’s a specific kind of satisfaction that comes from hearing fish skin crackle under a fork, and this crispy skin cod delivers it every single time. The trick isn’t complicated—it’s just patience, a dry fillet, and a hot pan that you leave alone until the skin releases itself.
While the cod sears, fennel slowly softens in its own juices with a splash of wine and stock until it turns silky and almost sweet, then gets brightened with fresh orange and lemon at the end. Serve the two together and you’ve got a dinner that looks like it came from a small seaside restaurant, even though it’s really just one skillet and about 35 minutes of actual cooking.
Ingredients
- 4 (6 oz) cod fillets, skin on, patted very dry
- kosher salt, to taste
- black pepper, to taste
- 3 tbsp olive oil, divided
- 2 tbsp unsalted butter
- 2 large fennel bulbs, thinly sliced, fronds reserved
- 1 shallot, thinly sliced
- 2 cloves garlic, thinly sliced
- 1/2 cup dry white wine
- 1/2 cup low-sodium chicken or vegetable stock
- 1 orange, zested and segmented
- 1 lemon, zested and juiced
- 1/4 tsp red pepper flakes (optional)
- flaky sea salt, for finishing
Instructions
- Trim the fennel bulbs, slice them thin from root to tip, and set the feathery fronds aside for garnish.
- Warm 2 tablespoons of olive oil in a wide skillet over medium-low heat. Add the fennel and shallot, season with salt and pepper, cover, and cook for 12-15 minutes, stirring occasionally, until the fennel is soft and translucent.
- Stir in the garlic and red pepper flakes and cook for 1 minute, then pour in the wine and stock along with the orange zest. Simmer uncovered for 8-10 minutes, until the liquid reduces to a light glaze and the fennel is meltingly tender. Set aside off heat.
- While the fennel simmers, pat the cod skin completely dry with paper towels—this step decides whether your skin crisps or steams. Score the skin lightly in two or three shallow slashes and season both sides with salt and pepper.
- Heat the remaining tablespoon of oil in a separate heavy skillet over medium-high heat until it shimmers. Lay the cod in skin-side down, pressing gently with a spatula for the first 30 seconds to keep it flat against the pan.
- Cook undisturbed for 4-5 minutes, until the skin is deep golden and releases easily from the pan. Flip carefully, add the butter, and baste the fillets with the foaming butter for 1-2 minutes until just cooked through and opaque.
- Transfer the cod to a plate skin-side up so it stays crisp while you finish the fennel. Stir the lemon juice and orange segments into the fennel confit and taste for salt.
- Spoon the warm fennel confit onto plates, top each with a cod fillet skin-side up, and drizzle with any juices left in the pan. Scatter reserved fennel fronds and a pinch of flaky sea salt over the top, then serve right away.
Tips
- Dry skin is everything: pat the fillets with paper towels and even let them sit uncovered in the fridge for 20 minutes before cooking to draw out extra moisture.
- Resist the urge to move the fish while it sears—the skin will naturally release from the pan once it’s properly crisp, usually around the 4-minute mark.
- The fennel confit can be made up to 2 days ahead and gently reheated; the flavor actually deepens overnight in the fridge.
- Cod is done at around 130-135°F (54-57°C) internally, when it flakes easily but still looks moist and slightly translucent at the center.
- No cod on hand? Halibut, sea bass, or snapper all work well with this same technique and timing.
Nutrition (per serving, estimated)
- Calories: 380 kcal
- Protein: 34 g
- Carbs: 12 g
- Fat: 22 g
Prep: 20 min · Cook: 35 min · Serves: 4