Phase 1: Preparing the Golden Caramel

1. Prepare the Pan: Have your 9-inch round cake pan or pie dish ready and nearby. Ensure it’s clean and dry.
2. Melt the Sugar: In a medium-sized, heavy-bottomed saucepan, combine the 1 cup of granulated sugar and 1/4 cup of water. Stir gently just to moisten the sugar.
3. Cook the Caramel: Place the saucepan over medium heat. Bring the mixture to a boil without stirring. As it boils, you can gently swirl the pan occasionally to ensure even cooking. The sugar will dissolve, and the mixture will turn clear, then gradually start to color, from light yellow to a deep amber. This process can take 5-10 minutes.

   • Pro Tip: Keep a close eye on the caramel. It can go from perfect to burnt very quickly. You’re looking for a color similar to honey or amber.

4. Coat the Pan: Once the caramel reaches the desired deep amber color, immediately remove it from the heat. Carefully and quickly pour the hot caramel into your prepared cake pan or pie dish.
5. Swirl to Coat: Working swiftly (as the caramel will start to harden), tilt and swirl the pan to coat the bottom evenly with the caramel. If you’re using individual ramekins, divide the caramel among them and swirl each one. Set the pan aside to cool; the caramel will harden and may crackle, which is perfectly normal.

Phase 2: Making the Silky Coconut Custard

1. Preheat Oven & Prepare Water Bath: Preheat your oven to 325°F (160°C). Place your larger baking pan (for the water bath) on the middle rack of the oven. Have a kettle of hot water ready.
2. Whisk Wet Ingredients: In a large mixing bowl, gently whisk together the 4 whole eggs and 2 egg yolks until just combined. Do not over-whisk, as this can incorporate too much air, leading to a bubbly flan.
3. Combine Milks and Flavorings: Gently whisk in the can of full-fat coconut milk, the can of sweetened condensed milk, and the 1/2 cup of evaporated milk.
4. Add Vanilla and Salt: Stir in the 1 ½ teaspoons of vanilla extract and 1/4 teaspoon of fine sea salt until everything is well incorporated.
5. Strain the Custard (Crucial Step): Pour the custard mixture through a fine-mesh sieve into another bowl or directly into the caramel-coated pan. This step is essential for achieving an ultra-smooth, silky flan, as it removes any potential bits of cooked egg or chalazae (the stringy bits in eggs).
6. Stir in Toasted Coconut (Optional): If using, gently stir the 1/2 cup of lightly toasted sweetened shredded coconut into the strained custard mixture.

Phase 3: Assembling and Baking the Flan

1. Pour Custard into Pan: Carefully pour the strained coconut custard mixture over the hardened caramel in your prepared baking dish.
2. Set up the Bain-Marie (Water Bath): Place the flan-filled pan inside the larger baking pan already in the preheated oven. Carefully pour hot water from your kettle into the larger pan, around the flan pan, until the water reaches about halfway up the sides of the flan pan. Be cautious not to splash water into the custard.

   • Why a water bath? The steam from the hot water creates a humid environment in the oven, allowing the custard to cook gently and evenly, preventing it from curdling, cracking, or becoming rubbery.

3. Bake: Bake for 60-75 minutes for a large flan, or 35-45 minutes for individual ramekins. The flan is done when the edges are set, but the center still has a slight jiggle (like Jell-O) when you gently shake the pan. An instant-read thermometer inserted near the center should read about 170-175°F (77-79°C).

   • Avoid Overbaking: Overbaking can result in a tough or curdled texture.

Phase 4: Cooling and Chilling (Patience is a Virtue!)

1. Cool Gradually: Carefully remove the larger pan (with the flan still inside) from the oven. Let the flan cool in the water bath on a wire rack for about 1 hour. This gradual cooling helps prevent cracking.
2. Remove from Water Bath: After 1 hour, carefully lift the flan pan out of the water bath. Let it cool completely to room temperature on the wire rack (another 1-2 hours).
3. Chill Thoroughly: Once at room temperature, cover the flan pan loosely with plastic wrap (try not to let the plastic touch the surface of the flan). Refrigerate for at least 6 hours, but preferably overnight, or even up to 2 days. This chilling period is crucial for the flan to fully set and for the flavors to meld. Do not rush this step!

Phase 5: The Grand Unmolding and Serving

1. Prepare for Unmolding: When ready to serve, remove the flan from the refrigerator about 20-30 minutes beforehand to take the chill off slightly, which can help the caramel liquefy a bit more.
2. Loosen Edges: Run a thin knife or offset spatula carefully around the edges of the flan to loosen it from the pan.
3. The Moment of Truth: Choose a serving platter with a rim (to catch the delicious caramel sauce). Place the serving platter upside down on top of the flan pan. In one swift, confident motion, invert both the pan and the platter.
4. Release: The flan should release onto the platter. If it seems stuck, you can gently shake the pan or tap the bottom. If it’s really stubborn, you can try setting the bottom of the flan pan in a shallow dish of hot water for a minute or two to help melt the caramel slightly (be careful not to melt the flan itself!).
5. Serve and Enjoy: Lift the pan away to reveal your beautiful Coconut Caramel Flan, with the luscious caramel sauce pooling around it. If some caramel remains in the pan, you can gently warm the pan over low heat to melt it, then pour it over the flan. Slice and serve immediately.