To a small saucepan, add the coconut butter, coconut oil, almond butter, and maple syrup. Heat on low, stirring occasionally, until there are no chunks remaining.
Add the chocolate chips and vanilla extract and cook until the chocolate is just melted, stirring frequently. Remove from heat.
Add the protein powder, cacao powder, collagen, and salt, stirring to incorporate.
Line a sheet pan with parchment paper (I used a 1/4 sheet pan) and spread the mixture evenly until it is 1/2 inch thick.
To make the chocolate topping, melt the chocolate chips and coconut oil in the microwave in 45-second increments, stirring between, until fully melted.
Top the brownie bark with the melted chocolate, smoothing into an even layer. Add the dye-free sprinkles.
Refrigerate for a few hours until the bark is set. Slice and enjoy!
Notes
This bark is best enjoyed slightly chilled, so store it in the fridge.