Preheat your oven to 350°F (175°C) and prepare a 9x13 inch baking pan by greasing or lining it.

In a medium bowl, whisk together 2 cups of all-purpose flour, ½ cup of cocoa powder, 1 teaspoon of baking powder, and ½ teaspoon of salt.

In a large bowl, combine 1 cup of melted butter and 2 cups of sugar. Whisk well, then add 4 eggs one at a time, followed by 1 tablespoon of vanilla and 1 tablespoon of red food coloring.

Gradually mix the dry ingredients into the wet mixture until combined, and fold in 1 cup of dark chocolate chips.

Spread the batter into the prepared pan and bake for 25-30 minutes, checking for doneness with a toothpick.

Cool the brownies in the pan before making the frosting by beating together 8 oz cream cheese, ½ cup unsalted butter, 4 cups powdered sugar, and 1-2 tablespoons of milk.

Spread the frosting over the cooled brownies, then melt ½ cup dark chocolate chips with 2 tablespoons of heavy cream and drizzle over the frosting.

Cut into squares or rectangles and serve at your Halloween gathering.