Sweet curdled milk

Ingredients:

• 8 cups of milk
• 3 cups brown sugar
• 2 eggs
• 4 tablespoons lemon juice 
• 1 cinnamon stick
• 1 teaspoon vanilla
• 1 lemon zest
• 1/2 teaspoon salt

Preparation:

1. In a large pot, combine milk, cinnamon, vanilla, sugar, salt, lemon zest and  beaten eggs.  
2. Then, bring to a boil to medium heat, stirring constantly with a wooden spoon.   
3. Fifteen minutes later, add the lemon juice , bring to a low heat for 1 hour and 45 minutes.  "DON'T MOVE".
4. Below, you can see, the mixture is so clear and looks like a crater, milk is curdling.

Already here, the mixture takes a dark color because it has more than 1 hour on heat.

Let cool slightly, refrigerate and serve.