#### For the Caramel
**Melt Sugar:** In a medium saucepan over medium heat, melt the sugar while stirring constantly with a wooden spoon. The sugar will clump before it melts and turns into a golden-brown liquid.
**Pour Caramel:** Immediately pour the melted caramel into your baking dish, tilting the dish to coat the bottom evenly. Set aside to let the caramel harden.
#### For the Custard
**Preheat Oven:** Preheat your oven to 350°F (175°C).
**Mix Ingredients:** In a mixing bowl, whisk together the eggs, sweetened condensed milk, evaporated milk, and vanilla extract until fully combined.
**Strain (Optional):** For an extra smooth custard, pour the mixture through a fine mesh strainer to remove any egg lumps.
**Pour Custard:** Pour the custard mixture over the hardened caramel in the baking dish.
#### Baking the Flan
**Prepare Water Bath:** Place the baking dish in a larger roasting pan. Fill the roasting pan with hot water until it reaches halfway up the sides of the flan dish.
**Bake:** Bake for 50–60 minutes or until the flan is set but still slightly jiggly in the center. A knife inserted near the center should come out clean.
**Cool:** Remove the flan from the water bath and let it cool to room temperature. Refrigerate for at least 4 hours or overnight.
#### Unmolding the Flan
Run a knife around the edges of the flan to loosen it.
Place a large plate over the baking dish and quickly invert the flan onto the plate. The caramel will flow over the flan, creating a beautiful topping.