In a blender, pulverize the almonds. Pour into a mixing bowl and add the mustard, cayenne, and cheese and mix well. Add 1/4-cup olive oil, juice, and zest. The sauce should be the texture of pesto. Set aside.
In a 12-inch, non-stick saute pan, heat the remaining oil until just smoking over medium heat. Dredge the monkfish in the seasoned flour and place in pan. Saute until golden brown on one side, about 7 minutes, and then turn. Add the wine, remaining lemon juice and butter and cook until wine is nearly evaporated and fish is cooked through. Add the parsley to the pan and swirl through. Place the fish on a serving plate. Cover with almond sauce and remaining pan sauce and serve.
Recipe copyright 2001, Mario Batali. All Rights Reserved.