Step 1

Mix water, sugar, salt, cornstarch or clearjel, lemon juice, grated lemon rind and egg yolks in large sauce pan, whisking to combine.

Step 2

Cook over med-high heat, stirring often to prevent sticking. Bring to a boil and cook one minute, stirring constantly.

Step 3

Remove from heat and stir in butter, stirring until melted.

Step 4

Pour into bowl, cover with saran wrap and allow to cool on counter top while you make your crust.