1-First Step: Preheat and Prepare the Caramel Begin by preheating your oven to 325°F to ensure even baking. In a saucepan, melt 1 cup sugar over medium heat, stirring constantly until it turns into a golden syrup; this takes about 5-7 minutes and forms the caramel base. Once ready, carefully pour the caramel into a 9-inch round cake pan, swirling to coat the bottom and sides evenly, then let it harden for a few minutes while you move to the next part.

2-Second Step: Whisk the Eggs In a medium bowl, whisk 4 eggs at room temperature until just combined; over-whisking can introduce air bubbles, so keep it light. This step is crucial for binding the custard, and you can adapt it for dietary needs by using egg substitutes if you’re making a vegan version. Set the beaten eggs aside while you prepare the rest of the mixture, ensuring everything stays at a similar temperature for smooth blending.

3-Third Step: Heat and Mix the Liquids Heat 1 cup whole milk and 1 cup heavy cream in a saucepan over medium heat until it just begins to scald, which means small bubbles form around the edges but it doesn’t boil. Stir in 1 ½ cups bittersweet chocolate chips, 2 tablespoons cocoa powder, 1 teaspoon vanilla extract, and 1 pinch salt until everything melts into a smooth, glossy mixture; this should take 2-3 minutes. For a lower-calorie option, you could swap in low-fat milk here to keep things adaptable.

4-Fourth Step: Combine and Pour the Mixture Add the chocolate mixture to 14 ounces sweetened condensed milk in a large bowl and whisk gently to combine, creating a rich base. Slowly incorporate the beaten eggs, stirring just until blended to avoid air pockets that could affect the texture. Pour this custard over the hardened caramel in the cake pan, cover tightly with foil, and place the pan in a larger roasting pan for the water bath.

5-Fifth Step: Bake in a Water Bath Pour 4-6 cups boiling water into the roasting pan around the cake pan, filling it halfway up the sides to create a gentle, even heat. Bake in the preheated oven for 1 hour, then check for doneness; the center should be slightly jiggly like jello. If it’s not set, bake in 5-10 minute increments, keeping an eye on it to prevent overcooking, which is especially important for achieving a creamy texture in dietary variations.

6-Final Step: Cool and Serve Remove the flan from the oven and let it cool at room temperature for about 1 hour to set properly. Refrigerate for at least 4 hours or overnight for the best flavor and texture. To serve, run a knife around the edges, invert onto a plate so the flan sits in the caramel sauce, slice, and enjoy; this method works well for all adaptations, like adding fresh garnishes for a special touch. For more chocolate inspiration, try our chocolate-covered strawberries recipe.