RICH LEMON CURD

Steps:

• Melt butter in a heavy medium saucepan over medium low heat.
• Remove the pan from the heat and whisk in sugar, lemon juice, zest and salt.
• Whisk in the yolks until smooth.
• Cook the mixture, whisking constantly, until it thickens and leaves a path on the back of a wooden spoon when a finger is drawn across it, do not allow the mixture to boil.
• Immediately pour lemon curd through a strainer into a bowl.
• Let cool to room temperature, whisking occasionally.
• Refrigerate, covered, until ready to serve (Lemon curd keeps for a month in the refrigerator and for about 3 months in the freezer).