Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, cream together the softened unsalted butter, granulated sugar, and brown sugar for about 2–3 minutes until light and fluffy.

Add the vanilla extract to the creamed mixture and mix until fully incorporated.

In a separate bowl, whisk together all-purpose flour, cocoa powder, salt, and baking powder.

Gradually add the dry ingredients to the wet mixture, mixing on low speed until just combined.

Scoop out portions of dough and roll them into balls, placing them on the prepared baking sheet.

Using your thumb or the back of a teaspoon, press into the center of each dough ball to create a small indentation.

Fill the indentations with chocolate chips or your favorite jam.

Bake the cookies for 12–15 minutes until the edges are slightly firm and the centers are soft.

Allow the cookies to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.