Line a loaf pan with parchment paper, leaving an overhang for easy removal.
In a large bowl, whisk together the coconut oil, cashew butter, maple syrup, and vanilla until combined.
Add the dry ingredients including the almond flour, protein powder, salt, and coconut flour, and stir with a wooden spoon or rubber spatula until it's completely combined and reaches a cookie dough texture. Fold in the chocolate chips.
Transfer the dough to the prepared pan and press the protein bars firmly into the pan in an even layer. Sprinkle with sea salt if desired.
Freeze for 20 minutes until set. Remove them from the pan and use a sharp knife to slice them into bars. Cookie dough protein bars store well in the fridge for up to 1 week or in the freezer for up to 3 months. I like to eat cookie dough bars directly from the freezer!
Notes
Note 1. Protein Powder. My favorite protein powder is Be Well By Kelly because of the quality ingredients and macronutrients. It's naturally dairy-free and doesn't have any carbs. For vegan protein bars, use a vegan protein blend, like rice protein. Be Well By Kelly also makes a vegan protein with chocho powder.*Nutrition information is based on using Be Well By Kelly protein powder and Lily's Dark Chocolate Chips. You can search 'Cookie Dough Protein Bars - whatmollymade' to find and log this recipe in My Fitness Pal.