1/2CupUnsalted butter cut into 1/4 inch pieces.(113g)
Instructions
Use a fork to rub the zest into the sugar.
Mix the egg and egg yolks with the sugar, then add the lime juice.
Pour the mixture into a medium saucepan and place over medium-low heat.
Cook while constantly stirring until the mixture has thickened and it coats the back of a wooden spoon (or a rubber spatula).
Remove from the heat and pour the mixture into a sieve over a clean bowl.
Add the butter and stir until the butter has melted. Let cool to room temperature, then refrigerate.
Notes
You can use two whole eggs or four egg yolks.
Use room-temperature egg, egg yolks, and butter.
Reduce the amount of sugar by up to 1/4 cup (50g).
The amount of butter will affect the consistency of the recipe. To achieve a thinner curd, reduce the amount of butter by up to 3 tablespoons. To achieve a thicker curd, increase the amount of butter by up to four tablespoons.