Step by step

Method

5 steps

1. 1

   In a small glass or plastic bowl, whisk lemon juice into beaten egg yolks, and set aside.

2. 2

   In a medium saucepan over medium heat, combine buttermilk, heavy cream, sugar, lemon zest, and salt, and stir until the sugar is dissolved.

3. 3

   Continue to heat, stirring regularly, until mixture just comes to a boil.

4. 4

   Remove from heat, and vigorously whisk 1 cup of cream mixture into egg mixture to temper.

5. 5

   Return pan to heat, and slowly pour the egg mixture into cream mixture, again whisking vigorously. Taste for salt and serve when it looks done.