Begin by preheating your oven to 350°F (175°C). Prepare a baking sheet by lining it with parchment paper; set this aside for later use.
In a mixing bowl, combine the all-purpose flour, cocoa powder, baking powder, and salt. Use a whisk to mix these dry ingredients together until they are fully blended and aerated.
In a separate bowl, pour in the melted butter and granulated sugar. Whisk them together until the mixture becomes smooth and creamy, creating a rich base for your cookies.
One at a time, add the eggs into the butter-sugar mixture, whisking well after each addition to ensure thorough incorporation. Then, stir in the vanilla extract and the peppermint extract for a refreshing flavor boost.
Gradually introduce the dry ingredient blend into the wet mixture, using a gentle folding motion until just combined. Avoid overmixing to maintain a soft and chewy texture in your cookies.
Carefully fold in the semi-sweet chocolate chips and the crushed peppermint candies until they're evenly distributed throughout the cookie dough.
Using a tablespoon or a cookie scoop, drop rounded portions of the cookie dough onto the prepared baking sheet, ensuring there's enough space between each dollop to allow for spreading during baking.
Place the baking sheet in the preheated oven and bake the cookies for 10-12 minutes. You’ll know they're ready when the edges are set but the centers still appear slightly soft.
Once baked, remove the cookies from the oven and let them cool on the baking sheet for about 5 minutes. This resting time will help them firm up before transferring them to a wire rack for complete cooling.
After the cookies have cooled, add a drizzle of chocolate syrup on top and sprinkle with extra crushed peppermint candies to elevate the fun festive flair.
Notes
Arrange the cookies on a decorative platter lined with festive paper for a beautiful presentation.