Lemon Curd

Steps

1. Add sugar and eggs to a saucepan and beat together until smooth.
2. Stir in lemon juice and zest.
3. Heat over medium heat, stirring constantly, until slightly thickened and 175 °F.
4. Remove from heat and immediately strain through a fine strainer into a mixing bowl.
5. Stir in butter, allowing it to melt in and emulsify the mixture.
6. Put in a storage jar and cover immediately, or cover with plastic wrap to keep a skin from forming while it cools.