Preheat the oven to 350º F. Line a 9×9 brownie pan with parchment paper. I like to use some coconut oil to lightly grease the pan so the parchment paper sticks well to the pan.
Into a large bowl, combine the Chocolate SunButter, coconut oil, coconut sugar, eggs, and vanilla. Whisk to combine.
Into another bowl, combine the whey protein powder, cacao powder, almond flour and sea salt. Stir to combine.
Add the dry ingredients into the large bowl with the wet ingredients, and stir until just combined.
Add the brownie batter into the prepared pan. Use wet hands or a wet spatula to press the thick brownie batter into the pan in an even layer. Top with chocolate chips or nuts, if desired.
Bake the brownies for 15 minutes. Do not over bake – the whey protein will make the brownies taste more dry than a traditional brownie when overcooked.