1-First, preheat your oven to 350°F and prepare your pan by greasing an 8×8 inch square pan or lining it with parchment paper for easy removal. This step ensures your brownies come out cleanly and without sticking. Melt the butter in a microwave-safe bowl for about 1 minute until fully melted, just as described in the directions.

2-Next, whisk in the sugar and cocoa powder until smooth and the sugar dissolves, which takes around 1 minute. Add the eggs one at a time, followed by the vanilla, whisking until the batter is shiny and well combined. Then, stir in the flour and salt just until mixed, avoiding overmixing to keep that fudgy texture.

3-Now, fold in any optional add-ins if you’re using them, and spread the batter evenly in the pan. Bake for about 20 minutes or until the center is slightly set and the sides pull away, but don’t overbake for the best results. Let the brownies cool completely before cutting into 9 large or 16 small pieces, allowing them to set for clean slices. For dietary adaptations like vegan substitutes, mix them thoroughly to maintain consistency, and remember that baking times might increase slightly for gluten-free versions.