https://www.mysupersave.com/Recipes/Detail/4989/Lemon_Curd
Yield: 1-2/3 cups
In a heavy saucepan, beat eggs and sugar.  Stir in lemon juice, butter and lemon zest.  
Cook and stir over medium-low heat for 15 minutes or until mixture is thickened and reaches 160 degrees.  
Cover and store in the refrigerator for up to 1 week.
Please note that some ingredients and brands may not be available in every store.
https://www.mysupersave.com/Recipes/Detail/4989/Lemon_Curd