Step 1: Preheat and Prep

Preheat your oven to 350°F (175°C). Grease a 9-inch round cake pan and line the bottom with parchment paper for easy removal.

Step 2: Make the Brownie Batter

1. In a large mixing bowl, whisk together melted butter, granulated sugar, and brown sugar until smooth.

2. Add the eggs one at a time, whisking well after each addition. Stir in the vanilla extract.

3. In a separate bowl, sift together the flour, cocoa powder, salt, and baking powder.

4. Gradually fold the dry ingredients into the wet ingredients until just combined. Avoid overmixing. 

5. Gently fold in the chocolate chips.

Step 3: Bake to Perfection

Pour the batter into the prepared cake pan and spread it evenly. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Do not overbake- this keeps it fudgy!

Let the cake cool in the pan for 10 minutes, then transfer it to a wire rack to cool completely. 

 Step 4: Prepare the Ganache

1. Heat the heavy cream in a small saucepan until it just starts to simmer (do not boil). 

2. Pour the hot cream over the semisweet chocolate chips in a bowl. Let it sit for 2-3 minutes, then stir until smooth. 

3. Stir in the butter for extra shine. Let the ganache cool slightly before pouring it over the cake.

Step 5: Assemble and Enjoy

Place the cooled brownie cake on a serving plate. Pour the ganache over the top, letting it drip down the sides for a beautiful finish. Let it sit for about 10 minutes before slicing.

Serve with a scoop of Mr. Bigpants' vanilla ice cream or a dollop of whipped cream for extra indulgence!