First, I like to gather everything and measure accurately. I melt the butter and chocolate together until silky smooth. Meanwhile, I preheat the oven to 350°F (175°C) and prepare my baking pan by greasing it lightly.
Next, I whisk the eggs and sugar together until slightly fluffy. Then, I gently fold in the melted chocolate mixture. I always sift the flour and cocoa powder before adding to ensure the batter is smooth and lump-free.
Now comes the fun part—I stir in peppermint extract and chocolate chips. The mint aroma is so inviting at this stage! I mix just until combined to keep the batter light and fudgy.
I pour the batter into the prepared pan and smooth the top. Baking takes around 25–30 minutes, but I always test with a toothpick—slightly fudgy crumbs are perfect for that classic chewy texture.
Once baked, I let the brownies cool in the pan for about 10–15 minutes before transferring to a wire rack. I sometimes dust the top with powdered sugar for a simple, elegant finish.