Preheat your oven to 180°C (350°F) and grease and flour a 9-inch round cake pan.

In a large mixing bowl, whisk together flour, cocoa powder, sugar, baking powder, and salt.

In a separate bowl, break eggs and beat lightly. Add milk, melted butter, and vanilla extract; whisk until smooth.

Slowly mix the wet ingredients into the dry ingredients until just combined; be careful not to overmix.

Pour the batter into the prepared cake pan and bake for 30-35 minutes, check for doneness with a toothpick.

Allow the cake to cool in the pan for about 10 minutes, then turn it out onto a wire rack to cool completely.

To make the glaze, melt dark chocolate and butter in a heatproof bowl set over simmering water; stir until smooth.

Once the cake is cool, pour the chocolate glaze over the top, allowing it to cascade down the sides.

Slice and serve the cake, enjoying the rich chocolate flavor.