Now, let’s bring this delightful creation to life with these detailed, easy-to-follow steps. Remember, cooking is an art and a science, so enjoy the process and don’t rush!

1. Preheat your oven to 350°F (175°C). Grease and flour two 8-inch round cake pans.
2. In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
3. In a large bowl, beat the eggs and sugar with an electric mixer on high speed until light and fluffy, about 3-4 minutes. This step reminds me of helping my grandmother beat eggs for her famous flan, always ensuring they were perfectly airy.
4. Gently fold in the flour mixture, alternating with the milk, starting and ending with the flour. Stir in the vanilla extract.
5. Divide the batter evenly between the prepared cake pans. Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
6. Let the cakes cool in the pans for 10 minutes, then turn them out onto a wire rack to cool completely.
7. For the custard, heat the milk in a medium saucepan over medium heat until it just begins to simmer.
8. In a separate bowl, whisk together the sugar, cornstarch, and egg yolks until smooth. Gradually whisk the hot milk into the egg mixture, then return to the saucepan.
9. Cook over medium heat, whisking constantly, until the mixture thickens and comes to a boil. Remove from heat and stir in the butter and vanilla extract. Let it cool completely.
10. For the glaze, heat the heavy cream in a saucepan over medium heat until it starts to simmer. Pour it over the chopped chocolate and let it sit for a minute before stirring until smooth and glossy.
11. To assemble, place one cake layer on a serving plate. Spread the cooled custard evenly over the top, then top with the second cake layer.
12. Pour the chocolate glaze over the top of the cake, letting it drip down the sides. This step always brings me joy, reminiscent of decorating cakes with my siblings, each adding their touch of creativity.
13. Refrigerate the assembled cake for at least 1 hour before serving to set the layers.