These brownies are rich, fudgy, and perfect for any chocolate lover.
Preheat your oven to 350°F (175°C).
Preheating ensures even baking from the start.
Grease an 8x8-inch baking pan or line it with parchment paper.
Lining with parchment makes it easier to remove the brownies later.
Melt the butter in a microwave-safe bowl until fully melted.
Cover the bowl to prevent splattering in the microwave.
Mix the sugar and cocoa powder into the melted butter until smooth.
Mix thoroughly to avoid lumps of cocoa powder.
Add the eggs one at a time, whisking well after each addition.
Ensure each egg is fully incorporated before adding the next.
Stir in the flour, salt, and baking powder until just combined.
Avoid overmixing to keep the brownies tender.
Fold in the chopped walnuts gently.
Coating the nuts in a bit of flour can prevent them from sinking.
Pour the batter into the prepared pan and spread it evenly.
Tap the pan gently on the counter to release air bubbles.
Bake in the preheated oven for 25-30 minutes or until a toothpick inserted in the center comes out with a few moist crumbs.
Check at the minimum time to avoid overbaking.
Let the brownies cool completely in the pan before cutting into squares.
Cooling fully ensures clean cuts and better texture.