Lemon Curd - cooking recipe

Ingredients

1 c. sugar
6 Tbsp. sweet butter (unsalted)
1/3 c. lemon juice
1 Tbsp. finely grated lemon rind
3 whole eggs plus 1 egg yolk

Preparation

In the top of a double boiler, combine the sugar, butter, lemon juice and lemon rind; mix well.
Place the pan directly over the heat, stirring constantly, and cook until the sugar is completely dissolved.
Remove from heat and cool slightly.