In a mixing bowl, whisk flour, whey protein powder, cocoa powder, baking soda and salt.
In another large mixing bowl, use a handheld or stand mixer to combine coconut oil, cane sugar, brown sugar until creamed, about 3 minutes.
Beat in egg and vanilla extract and mix until incorporated.
Add dry ingredients to wet and mix on low speed.
Fold in chocolate chips and chill dough for about 2-4 hours.
Preheat oven to 350oF and line baking sheet with parchment. Scoop heaping tablespoons of dough and roll into a ball and then roll in powdered sugar.
Place on baking sheet and bake for 8 minutes, remove from oven and bang on counter 2-3 times to trigger the spread of the dough and sugar, and then place back in the oven for about 3-4 more minutes. Allow to cool and enjoy!