2 tablespoons butter
4 teaspoons all-purpose flour
¾ cup milk
2 tablespoons lemon juice
¼ teaspoon salt
⅛ teaspoon cayenne pepper
Melt butter in a saucepan over medium heat. Stir in flour to form a smooth paste. Gradually stir in milk; bring to a boil over medium heat, stirring constantly. Cook for 2 minutes or until thickened.
Remove the pan from heat; stir in lemon juice, salt, and cayenne pepper.
