Add sugar, water, and a few drops of fresh lemon juice to a saucepan or pan. Place on medium heat and stir occasionally until the caramel turns golden amber, about 10 minutes. Once it reaches a nice amber color, remove it from the heat right away.Be very careful, the caramel is extremely hot. Carefully pour the caramel into a stainless steel baking dish and tilt it so it coats the bottom and a bit of the sides. Set it aside to cool and harden while you prepare the custard.
For the Flan
In a large bowl, add dulce de leche, milk, eggs, vanilla, and a salt. Whisk everything together until smooth and no lumps remain. If you have trouble removing the lumps, pour the mixture through a fine sieve. You can also use a blender, but blend only for a few seconds so the mixture doesn’t get foamy or full of bubbles.
Pour the custard gently into the baking dish over the caramel. Cover the top tightly with foil. Place the dish inside a larger baking tray and pour hot water around it until it reaches about halfway up the sides. This creates a water bath, which helps the flan cook evenly and stay creamy.
Bake in a preheated oven at 180°C (350°F) for about one hour, or until the flan looks set but still jiggles slightly in the center. When done, remove it from the water bath and let it cool at room temperature. Once cooled, refrigerate for at least four hours or overnight.
Serve
When you’re ready to serve, run a knife around the edges of the pan. Place a large plate on top and flip it quickly. If the caramel seems stuck, place the bottom of the pan in hot water for a few seconds or warm it slightly with a kitchen torch to loosen it.
Notes
Nutrition info is estimated and may vary based on ingredients and portions. For the most accurate details, consider using a nutrition tool or checking our full Nutrition Information Disclaimer.