Step 1

Whisk together lemon zest and sugar in a small saucepan to release the lemon essential oil.

Step 2

Add eggs, lemon juice, and place saucepan over medium low heat, stirring until the mixture is thoroughly combined. Add the cubed butter and a pinch of salt.

Step 3

Continue cooking and stirring constantly until the curd thickens, this will take about 6 -7 minutes.

Step 4

Remove pan from heat and strain through a fine mesh sieve for a smoother texture. Add a splash of vanilla extract and stir to combine.

Step 5

Allow lemon curd to cool completely and keep refrigerated.