With the ingredients in hand, follow these straightforward steps to create your Black Sesame Cookies:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper for easy cleanup.
2. Mix Sugar and Fats: In a large mixing bowl, cream the softened butter and granulated sugar until light and fluffy.
3. Add Wet Ingredients: Beat in the melted coconut oil, egg, and vanilla extract until well combined.
4. Combine Dry Ingredients: In a separate bowl, whisk together the flour, black sesame seeds, baking powder, and salt.
5. Combine Mixtures: Gradually mix the dry ingredients into the wet ingredients, stirring until a dough forms.
6. Scoop Cookies: Using a tablespoon or cookie scoop, drop cookie dough onto the prepared baking sheet, spacing them about 2 inches apart.
7. Flatten Cookies: Gently flatten each cookie with the back of a fork or your hand for an even baking surface.
8. Bake: Bake in the preheated oven for 12-15 minutes, or until the edges are slightly golden.
9. Cool: Remove from the oven and allow the cookies to cool on the baking sheet for about 10 minutes before transferring them to a wire rack to cool completely.
10. Enjoy: Once cooled, your Black Sesame Cookies are ready to be enjoyed!