Preheat your oven to 350°F (175°C). Grease a 9x9-inch baking pan or line it with parchment paper.

In a large mixing bowl, whisk together cocoa powder, granulated sugar, all-purpose flour, and a pinch of salt until fully incorporated.

In a separate bowl, melt the butter and let it cool slightly. Whisk in eggs until smooth.

Pour the wet ingredients into the dry ingredients and gently fold until just combined.

Spread the batter into the prepared baking pan and bake for 25 to 30 minutes. Check for doneness with a toothpick.

Once cooled, cut the brownies into squares and decorate with white icing to mimic mummy wrappings and add candy eyes.