In a medium size bowl, whisk together flour, baking soda, and salt. Set aside.
In a large bowl using an electric mixer, beat together butter and sugars on medium speed until light and fluffy. Add eggs and vanilla extract; mix until combined.
Scrape down the sides of the bowl, add cocoa powder and pudding mix; mix on low speed until combined. Add flour mixture; mix on low speed until combined.
Scoop dough into heaping tablespoon rounds, or use a #40 disher to scoop balls of dough.
Place balls of dough on a tray or baking sheet, cover with plastic wrap, and refrigerate for at least 2 hours. Do not bake cookies without chilling as they are prone to spreading.
Bake 9-11 minutes or until edges have set. Mine baked perfect at 10 minutes. Do not overbake, which is easy to do with chocolate cookies.
Cool cookies on baking sheet on a wire rack for 8 minutes; transfer to a wire rack to cool completely. Eat & Enjoy!
Notes
Triple Chocolate Peppermint Cookies should be stored in an airtight container and will keep 6+ days.¹ You want an instant pudding mix NOT sugar-free or cook & serve.