Ingredients :

​

# 1 Tbsp butter
# 1 1/2 Tbsp flour
# 1 cup milk
# 1/2 tsp salt
# 6 shakes pepper
# 2 tsp anchovy sauce
# 1 tsp lemon juice

​

Method :

​

Melt butter in a small saucepan and remove from heat. Add flour, and stir with a wooden spoon. Cook slowly for 1/2 minute, stirring continuously. Do not allow to brown. Remove from heat. Add the liquid, anchovy sauce and lemon juice, and gradually stir until smooth. Return to the heat and stir until boiling. Reduce heat and stir 1 minute. Serve.