Step 1: gather ingredients
1/2 cup (115g) unsalted butter, melted
1 cup (200g) granulated sugar
2 large eggs
1 tsp vanilla extract
1/3 cup (40g) unsweetened cocoa powder
1/2 cup (65g) all-purpose flour
1/4 tsp salt
1/4 tsp baking powder
Optional: 1/2 cup (90g) chocolate chips or chopped nuts
Instructions
Preheat Oven: Set your oven to 350°F (175°C). Grease an 8x8-inch (20x20 cm) baking pan or line it with parchment paper for easy removal.

step 2: combine them

Mix Wet Ingredients: In a medium bowl, whisk together the melted butter and sugar. Add the eggs and vanilla extract, whisking until smooth.

Combine Dry Ingredients: In a separate bowl, sift together the cocoa powder, flour, salt, and baking powder.

Mix Together: Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Be careful not to overmix.

Optional Add-ins: Gently fold in chocolate chips or nuts if desired.

Bake: Pour the batter into the prepared pan and spread it evenly. Bake for 20-25 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Cool: Allow the brownies to cool in the pan for 10-15 minutes before cutting into squares.

so that basically wraps it up, but there is one optiuonal part you could do which is pressing the silly little green button in the game page in the library

the end