Preheat oven to 350°F. Grease an 8×8-inch baking pan or line it with parchment paper.
In a large mixing bowl, whisk together almond butter, eggs, maple syrup, almond milk, and vanilla extract until smooth.
Add protein powder, cocoa powder, sea salt, and baking powder to the bowl. Stir until fully combined.
If the batter feels too thick or dry, add an extra splash of almond milk.
Fold in chocolate chips gently.
Transfer the batter to the prepared baking pan and spread evenly.
Top with additional chocolate chips if desired.
Bake The Best Protein Brownies for 25–30 minutes, or until the center is set and a toothpick comes out mostly clean.
Let the brownies cool completely before slicing into squares.