01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, cocoa powder, baking soda, and salt until well blended.
03 - In a large bowl, cream the butter, granulated sugar, and brown sugar until light and fluffy, about 2-3 minutes.
04 - Beat in eggs one at a time, then add vanilla, orange zest, and orange juice. Mix until fully incorporated.
05 - Gradually add the dry ingredients to the wet mixture, mixing on low speed until just combined. Do not overmix.
06 - Gently fold in the semisweet chocolate chips until evenly distributed throughout the dough.
07 - Scoop tablespoon-sized balls of dough onto prepared baking sheets, spacing them about 2 inches apart to allow for spreading.
08 - Bake for 10-12 minutes, until the edges are set but the centers are still slightly soft.
09 - Let cookies cool on baking sheets for 5 minutes, then transfer to wire racks to cool completely before decorating.
10 - Create spooky faces using candy eyeballs, sprinkles, or icing. Use melted white and dark chocolate for additional details if desired.