Lemon Curd

Directions

1. 1
   Juice and zest the lemons.
2. 2
   Combine egg yolks and sugar and whisk.
3. 3
   Add zest and 1/3 cup lemon juice.
4. 4
   Put bowl over simmering water and whisk until thick and light yellow.
5. 5
   Should coat a spoon.
6. 6
   Take off heat and add butter one tablespoon at a time, whisking after each addition.
7. 7
   Chill.