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

In a large bowl, mix together the peanut butter, granulated sugar, and brown sugar until smooth and slightly glossy.

Add the eggs and vanilla extract, stirring until well combined.

In a separate bowl, whisk together the baking soda and cocoa powder to break up any lumps. Gradually add this mixture to the peanut butter mixture, stirring until fully incorporated.

Chill the dough in the refrigerator for 30 minutes.

Once chilled, scoop a tablespoon of cookie dough, flatten it slightly in your palm, and place a Miniature Reese's in the center. Wrap the dough around the candy and roll into a smooth ball.

Roll each ball in powdered sugar until well-coated and place on the baking sheet about 2 inches apart.

Bake for 10–12 minutes, until the edges are set but the centers still look slightly soft.

Let the cookies cool on the baking sheet for a few minutes, then transfer them to a wire rack to cool completely.