Preheat your oven to the temperature specified in your recipe.
In a medium bowl, whisk together the all-purpose flour, baking powder, and salt. Set aside.
In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
Gradually add the dry ingredients to the wet ingredients, alternating with the milk. Begin and end with the dry ingredients. Mix until just combined.
Sprinkle the bamboo charcoal powder over the batter and gently fold it in until evenly distributed. Be careful not to overmix.
Grease or line your baking pans according to the recipe you are following. Pour the batter into the prepared pans.
Bake in the preheated oven for the recommended time stated in your recipe. Keep a close eye on the baking process, as the bamboo charcoal powder may affect the baking time slightly.
Test the doneness of your baked goods by inserting a toothpick into the center. If it comes out clean or with a few crumbs, the baked goods are ready. Remove from the oven and let them cool in the pans for a few minutes before transferring to a wire rack to cool completely.
Please note that the specific measurements and instructions may vary depending on the type of baked goods you are making. It's always a good idea to consult a reliable recipe that specifically incorporates bamboo charcoal powder for the best results.