Soft, thick chocolate pudding cookies packed with melted chocolate, cocoa powder, and chocolate chips. Chewy centers and rich chocolate flavor in every bite.
Whisk together flour, baking powder, pudding mix, cocoa powder, and salt in a medium bowl. Set aside.
Beat butter and brown sugar in the bowl of a stand mixer fitted with the paddle attachment on medium-high speed until light and fluffy, about 3 to 4 minutes.
Add eggs and vanilla and beat to combine. The mixture may look curdled at this point, which is normal.
Reduce speed to low and add the flour mixture in several additions, mixing just until combined after each addition and scraping down the bowl as needed.
With the mixer running on low, slowly pour in the melted chocolate and mix until combined. Stir in the chocolate chips.
Cover and refrigerate the dough for at least 3 hours or overnight.
Preheat oven to 350°F. Line two baking sheets with parchment paper.
Roll dough into balls approximately the size of ping-pong balls and place 2 inches apart on the prepared sheets. Press down slightly to flatten the tops.
Bake for 12 minutes. The tops should still look glossy in the center — they will not look fully done. Cool on the baking sheet for 10 minutes, then transfer to a wire rack. The cookies firm up as they cool.
Notes
Chilling: Refrigerate the dough for at least 3 hours; overnight produces noticeably thicker and chewier cookies with better flavor. Doneness: Pull the cookies when the tops are still glossy in the center. They will look underdone — that is correct. They finish setting as they cool on the pan. Freezing dough: Roll chilled dough into balls and freeze in a zip-top bag for up to 3 months. Bake straight from frozen and add approximately 3 minutes to the bake time. Storage: Store baked cookies in an airtight container at room temperature for up to 5 days.