To finish the sauce, add the double cream to the pan and season, to taste, with salt and white pepper. To assemble the pie, butter a casserole dish generously and flake the set-aside fish ...
While fish roasts, in a saucepan over low heat, gently heat olive oil until hot but not smoking. Add lemons, rosemary, pepper and a pinch of salt. Remove from heat and let steep. When fish is done ...