1. Preheat the Oven:

Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.

2. Mix Dry Ingredients:

In a medium bowl, whisk together the flour, baking soda, baking powder, salt, and activated charcoal powder. Set aside.

3. Cream Butter and Sugars:

In a large bowl, cream the softened butter, granulated sugar, and brown sugar together using an electric mixer or hand whisk. Beat until the mixture is light and fluffy (about 3-4 minutes).

4. Add Wet Ingredients:

Add the egg and vanilla extract to the butter mixture. Beat until fully combined.

5. Combine Dry and Wet Ingredients:

Gradually add the dry ingredients to the wet ingredients. Mix until the dough starts to come together. If the dough feels too dry, add a tablespoon of milk at a time until the dough is soft and slightly sticky, but not too wet.

6. Shape the Dough:

Roll the dough into tablespoon-sized balls and place them on the prepared baking sheet, spacing them about 2 inches apart. You can lightly flatten them with the back of a spoon or your fingers if you prefer a slightly flatter cookie.

7. Bake:

Bake the cookies for 8-10 minutes, or until the edges start to turn golden. The center should still be soft but set.

8. Cool and Enjoy:

Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely. Enjoy your grey colored cookies!