Crack an egg on a flat surface.
Over a bowl, separate the shell at the widest point to create two halves.
Pass the egg yolk back and forth between the two halves, allowing the egg white to drip down into the bowl.
Repeat until you are left with just the yolk in the shell.
Place the egg yolk in a separate large bowl.
Repeat for the remaining eggs.
Using your whisk, or a fork, break the egg yolks.
Add condensed milk. Using a spatula, stir to combine with the yolks.
Add evaporated milk. Using a spatula, gently stir in a circular motion until mixture is well combined.
Using a fine-mesh sieve, strain the mixture to remove any remaining egg whites. Set aside.
Wrap the bottom of your llaneras tightly with foil. This is to prevent any water seeping in when you bake the leche flan.
Pour the mixture into the prepared llaneras.
Arrange the llaneras in a wide, oven-safe dish with about 1-inch of water (bain marie or water bath).