Preheat your oven to 350°F (175°C) and prepare a 9-inch round cake pan by greasing and flouring it to prevent sticking.

In a medium bowl, whisk together the flour, cocoa powder, baking powder, and salt until well combined.

In a large mixing bowl, use an electric mixer to cream the softened butter and sugar until light and fluffy, about 2-3 minutes.

Beat in the eggs, one at a time, ensuring each is fully incorporated before adding the next. Stir in the vanilla extract.

Gradually add the dry ingredients to the wet mixture, mixing just until combined. Do not overmix to ensure a tender brownie texture.

Pour the batter into the prepared pan and smooth the top. Bake for 25-30 minutes or until a toothpick inserted in the center comes out with a few moist crumbs. Allow the brownies to cool completely in the pan on a wire rack.

While the brownies are cooling, prepare the ganache. Heat the heavy cream in a small saucepan over medium heat until it begins to simmer. Remove from heat and pour over the chocolate chips in a heatproof bowl. Let sit for 1-2 minutes, then stir until smooth and glossy.

Once the brownies are completely cooled, pour the ganache over the top and spread evenly with a spatula. Allow the ganache to set slightly before slicing.

Cut the brownies into 8 slices and serve immediately. These brownies are delicious on their own or paired with a scoop of vanilla ice cream.

Store any leftover brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week. For longer storage, freeze for up to 3 months.