Homemade Lemon Curd

Directions

1. 1
   Combine the butter and sugar in a medium mixing bowl with an electric mixer.
2. 2
   Add the eggs and egg yolks one at a time, mixing well between each addition.
3. 3
   Mix in the lemon juice.
4. 4
   Transfer the butter and egg mixture to a medium saucepan with a heavy bottom. Cook and stir the mixture over low heat until the butter melts and the mixture looks smooth. Increase the heat to medium and cook, stirring constantly, until the mixture thickens and coats the back of a wooden spoon, about 15 minutes. DO NOT BOIL.
5. 5
   Remove the lemon curd from the heat and stir in the lemon zest.
6. 6
   Transfer the lemon curd to a container and press plastic wrap onto the surface, covering the lemon curd, to keep a skin from forming on the top. Refrigerate.