01 -
Preheat oven to 350°F. Pour melted butter into a 9x9-inch baking dish and set aside.
02 -
In a large bowl, whisk together flour, brown sugar, baking powder, salt, 1/2 cup granulated sugar, and 1/4 cup cocoa powder until evenly blended.
03 -
Pour in whole milk and vanilla extract to the dry mixture. Whisk until smooth and fully combined.
04 -
Fold in semi-sweet chocolate chips until distributed evenly throughout the batter.
05 -
Pour batter evenly over melted butter in the baking dish without mixing. In a separate bowl, whisk remaining 1/2 cup granulated sugar with 1/4 cup cocoa powder and sprinkle the mixture evenly over the batter.
06 -
Carefully pour hot water over the top layer without stirring. Place baking dish on a drip tray and bake uncovered for 40 to 50 minutes, until a crust forms and the top is dry.
07 -
Allow to cool for 10 minutes before serving to let the cobbler set. Serve with toppings such as ice cream, whipped cream, or fresh fruit if desired.