FISH SAUCE OR GRAVY

Ingredients:
Butter - 2 tbsp
Flour - 2 tbsp
Milk - 1 1/2 cups (scalded)
Basic fish stock - 1/2 cup
Lemon juice - 2 tbsp
Egg yolk - 1

Method:

• Melt butter; gradually add flour and heated milk.
• Add fish stock and lemon juice just before removing from heat.
• Just before serving, beat sauce into egg yolk.
• One tablespoon catsup can be added, if desired.
• Bottled clam broth can be used as a substitute for fish stock in most dishes.