I have been reading your blog from some time but never have made a comment

As a Spaniard, just a note about Spanish flan,, it is only made with sugar, eggs and normal milk.

My favourite recipe is:

Flan
6 people
500 gr (1/2 liter) milk
4 eggs
130 gr sugar
Caramelized / liquid sugar

Mix all ingredients until well blended. Pour some liquid caramel into the ramekins and preheat your oven to 160 C. Then pour the flan into the ramekins. In a oven dish that can hold all ramekins, pour hot water half full and put the ramekins (covered with foil if you want to). Cook for one hour.

The main difference is the condensed milk, in Spain we never use that, it is considered Mexican And the hot bath is very important for a creamier texture.

Greetings,
nek0