Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper or a silicone baking mat to prevent sticking.

In a medium mixing bowl, whisk together the Quest brownie mix and chocolate protein powder until fully combined and free of lumps.

Add the melted coconut oil or butter to the dry mixture and stir until small crumbles begin to form.

Slowly pour in the water or almond milk, starting with 2 tablespoons and adding more only as needed, mixing until a thick cookie dough forms.

Scoop out small portions of dough and roll them into balls using your hands, then place them evenly spaced onto the prepared baking sheet.

Lightly flatten each dough ball with your fingers or the back of a spoon to form a cookie shape.

Bake the cookies for 8–10 minutes, removing them when the edges look set but the centers still appear slightly soft.

Allow the cookies to cool on the baking sheet for 2–3 minutes to firm up before transferring them to a plate or container.