Categories: Fish/sea, Sauces 
      Yield: 4 servings 
  
  1 1/2 lb Catfish fillets                     1 tb Lemon juice 
      2 x  Egg whites                          2 tb Sour cream 
      1 tb Grated onion                        1 x  Clove garlic 
    1/4 ts Dry mustard                       1/4 ts White pepper 
      2 tb Butter or margarine                 2 tb Flour 
      1 c  Milk                                4 ts Prepared horseradish 
  
  Arrange fish on baking pan sprayed with nonstick cooking spray. Sprinkle 
  with lemon juice.  In small bowl beat egg whites until soft peaks form. 
  Fold in sour cream, onion, garlic, mustard and 1/8 teaspoon white pepper. 
  Spoon some of mixture on top of each fillet. Bake at 375F for 20 minutes or 
  until fish is opaque or skewer glides easily through flesh. Meanwhile in 
  small saucepan melt butter.  Blend in flour until smooth. Stir in milk, 
  hourseradish and remaining 1/8 teaspoon white pepper. Cook and stir over 
  medium heat until mixture is bubbly and slightly thickened. Serve over 
  fish.