Preheat the oven to 350°F (175°C) and grease an 8x8-inch baking pan.

Whisk together flour, cocoa powder, granulated sugar, brown sugar, and a pinch of salt in a medium bowl until combined.

Combine melted butter, eggs, and vanilla extract in another bowl. Stir thoroughly until well mixed.

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

Transfer the batter into the prepared pan and spread it evenly. Bake for 25-30 minutes or until a toothpick comes out with moist crumbs.

Cool the brownies in the pan before cutting them into football shapes and decorating.

Dust with powdered sugar for a festive touch before serving.