1.
Line llanera or leche plan mold with caramelized sugar.
2.
Mix egg yolks, sugar, evaporated milk and lime rind in a bowl and gently mix, not beat, until yolks are all broken and blended.
3.
Strain the custard through a sieve to remove the rind. Pour this mixture into the mold.
4.
Place this mold into a larger pan filled with water. Place in a preheated oven at 165 C.
5.
Bake 2 hours or until the mixture is firm. Slow baking is necessary so the mixture is smooth when done.