bake · Bake

How to Make Flan from Scratch

Name: How to Make Flan from Scratch
Yield: 4
Ingredients: 1 cup granulated sugar; 2 cups whole milk; 4 large eggs; 1/2 cup sugar; 1 tsp vanilla extract

Flan is a caramel custard that requires making caramel first, then a custard base, and baking it in a water bath. The caramel goes in the bottom of your mold, the custard mixture pours on top, and the whole thing bakes gently until set. When you unmold it, the caramel becomes a sauce that flows over the silky custard.

Total time: 4 hr 30 min
Hands-on: 20 min
Serves: 4
Difficulty: Medium

Ingredients

1 cup granulated sugar
2 cups whole milk
4 large eggs
1/2 cup sugar
1 tsp vanilla extract

Step by step

Make the caramel. Pour 1 cup granulated sugar into a heavy-bottomed saucepan. Cook over medium heat without stirring until the sugar melts and turns deep amber, about 8-10 minutes. Swirl the pan occasionally to ensure even cooking. The moment it reaches a rich caramel color, remove from heat.
Coat your molds. Immediately pour the hot caramel into your flan mold or ramekins, tilting to coat the bottom evenly. Work quickly before the caramel hardens. Set aside to cool completely.
Heat the milk. Warm 2 cups whole milk in a saucepan over medium heat until small bubbles form around the edges. Do not boil. Remove from heat and let cool slightly.
Mix the custard base. Whisk together 4 large eggs, 1/2 cup sugar, and 1 teaspoon vanilla extract in a large bowl. Slowly pour the warm milk into the egg mixture while whisking constantly to prevent curdling.
Strain the mixture. Pour the custard through a fine-mesh strainer into the caramel-lined molds. This removes any lumps and ensures a silky texture.
Prepare the water bath. Place the filled molds in a large baking dish. Pour hot water into the dish until it reaches halfway up the sides of the molds. Cover the entire dish tightly with aluminum foil.
Bake the flan. Bake at 325°F for 45-60 minutes, until a knife inserted near the center comes out clean. The custard should be set but still slightly jiggly in the very center.
Cool and unmold. Remove from water bath and cool completely at room temperature, then refrigerate for at least 4 hours. To unmold, run a thin knife around the edges, place a serving plate on top, and quickly invert.

Tips & troubleshooting

Watch the caramel like a hawk once it starts changing color—it goes from perfect to burned in seconds
Strain the custard mixture twice if you want an absolutely smooth texture
The water bath prevents the edges from overcooking while the center sets
Flan improves after a day in the refrigerator as the caramel softens and creates more sauce
If caramel sticks to your pan, fill it with water and simmer until it dissolves

Variations

Coffee Flan. Add 2 tablespoons instant espresso powder to the warm milk before mixing with eggs.
Coconut Flan. Replace half the milk with coconut milk and add 1/2 cup shredded coconut to the custard base.
Orange Flan. Add the zest of 2 oranges to the custard and replace vanilla with orange extract.

Questions

Why did my caramel seize up or crystallize?: This usually happens from stirring the sugar while it melts or from moisture. Start over with a clean, dry pan and resist the urge to stir—just swirl the pan gently.
How do I know when the flan is done?: Insert a knife about an inch from the center. It should come out clean, and the center should be set but still have a slight jiggle when you shake the mold gently.
What if my flan has bubbles or a grainy texture?: Bubbles usually come from whisking too vigorously or baking at too high a temperature. Graininess happens when the eggs cook too quickly—make sure your milk isn't too hot when you add it to the eggs.
Can I make flan ahead of time?: Flan actually gets better with time. Make it up to 3 days ahead and keep it covered in the refrigerator. Don't unmold until you're ready to serve.