🇪🇸 Spain · Dessert
Flan Casero (Homemade Spanish Caramel Custard)
By eatmundo · July 7, 2026
Flan Casero is Spain's beloved, silky-smooth custard dessert, crowned with a shimmering layer of golden caramel. This classic treat, simple yet elegant, features a rich, creamy texture and a perfectly balanced sweetness that makes it an irresistible end to any meal. It's truly a taste of Spanish tradition.
Ingredients
check them off as you prepareHow to Make It
- 1
Preheat your oven to 160°C (325°F). For the caramel, combine 100g of sugar and 4 tablespoons of water in a small, heavy-bottomed saucepan. Cook over medium heat without stirring until the sugar dissolves and turns into a deep amber caramel, about 5-8 minutes. Watch it closely, as it can burn quickly.
- 2
Immediately pour the hot caramel into a 1.5-liter flan mold or six individual ramekins, tilting each one to coat the bottom evenly. Be careful, as the caramel is extremely hot. Set these aside to cool and harden while you prepare the custard.
- 3
In a large bowl, lightly whisk 4 large whole eggs and 2 large egg yolks together. Whisk just enough to combine them, avoiding creating too many air bubbles, which can lead to a less smooth custard. Set aside.
- 4
In a separate saucepan, combine 500ml of whole milk, 200g of sweetened condensed milk, 1 teaspoon of vanilla extract, and a pinch of salt. Heat over medium-low heat, stirring occasionally, until the mixture is warm and steaming, but not boiling. Remove from heat.
- 5
Slowly pour the warm milk mixture into the whisked eggs, whisking constantly. This tempering process is crucial to prevent the eggs from scrambling. Continue whisking until the custard mixture is smooth and fully combined.
- 6
Strain the custard mixture through a fine-mesh sieve into a clean bowl to remove any potential egg solids or air bubbles, ensuring an incredibly smooth flan. Carefully pour the strained custard over the hardened caramel in your prepared mold(s).
- 7
Place the flan mold(s) into a larger baking pan. Fill the larger pan with hot water, reaching about halfway up the sides of the flan mold(s). This water bath (bain-marie) ensures even, gentle cooking, preventing the custard from curdling. Bake for 45-60 minutes, or until the edges are set and the center slightly jiggles when gently shaken.
- 8
Carefully remove the flan mold(s) from the water bath and let them cool completely on a wire rack at room temperature. Once cool, cover with plastic wrap and refrigerate for at least 4 hours, or preferably overnight, to allow the flan to fully set and the flavors to meld.
- 9
To serve, run a thin knife around the edge of the flan to loosen it. Place a serving plate upside down over the mold, then invert the mold onto the plate. The caramel should beautifully cascade over the silky custard. Serve chilled and enjoy this classic Spanish delight!
Frequently Asked Questions
How can I ensure my caramel for Flan Casero doesn't burn or crystallize?+
To prevent burning, cook the sugar and water over medium heat without stirring until it turns an amber color, then immediately remove from heat. Avoid stirring the sugar mixture before it's fully melted to prevent crystallization.
How do I know when my Flan Casero is perfectly baked and set?+
The flan is done when the edges are set but the center still has a slight jiggle. An inserted knife or toothpick into the center should come out clean, or mostly clean with moist crumbs, not liquid.
What's the key to achieving a smooth, bubble-free texture in Flan Casero?+
To achieve a silky texture, whisk the egg mixture gently to avoid incorporating too much air, then strain it through a fine-mesh sieve before pouring into the molds. Baking in a water bath also promotes even, gentle cooking.
What's the best technique for unmolding Flan Casero without breaking it?+
After chilling thoroughly for at least 4 hours (preferably overnight), run a thin knife around the edge of the flan to loosen it. Briefly dip the mold bottom in hot water, then invert onto a serving plate with a quick, confident flip.
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