Step 1

Preheat the oven to 350F and spray an 8x8 or 9x9 baking pan with non-stick spray.

Step 2

In one bowl whisk together 1/2 of the sugar with 1/2 of the cocoa powder.

Step 3

In another bowl whisk together the flour, baking powder, salt, and remaining sugar and cocoa powder.

Step 4

Add the milk, butter, egg yolk, and vanilla extract to the flour bowl. Stir until combined with a rubber spatula. The mixture will get quite thick. Fold in the chocolate chips.

Step 5

Spread the brownie cake mixture into the greased pan as best as possible.

Step 6

Sprinkle the set aside sugar/cocoa mixture on top of the whole brownie cake batter.

Step 7

Pour the boiling water on top over as best as you can, but do not stir in.

Step 8

Bake for 25 minutes.

Step 9

Allow to rest for about 10 minutes.

Step 10

Serve while warm topped with vanilla ice cream!