Steps
1. Bring a small pot of water to a gentle boil and carefully add the egg. Boil for exactly 6 minutes for a soft center. Remove and place in cold water to stop cooking.
2. Season the cod fillet with salt, pepper, and lemon juice.
3. In a non-stick pan, melt the butter over low heat until it begins to foam gently.
4. Add the cod fillet and poach it gently in the butter for about 4-5 minutes per side, until cooked through and opaque.
5. Peel the soft-boiled egg.
6. Plate the cod and place the soft-boiled egg beside it. Garnish with chopped parsley if desired.
7. Serve immediately.