Start by preheating your oven to 350°F (175°C). Lightly grease a standard 12-slot muffin tin with coconut oil or non-stick cooking spray to ensure the cups come out easily after baking.
In a large mixing bowl, combine the almond flour, chocolate protein powder, chopped pecans, and salt. Stir these together until there are no large clumps of protein powder left.
In a separate smaller bowl, whisk together the eggs, maple syrup, vanilla extract, and melted coconut oil. Once smooth, pour the wet mixture into the dry ingredients and stir until a thick, sticky batter forms.
Gently fold in the dark chocolate chips. This ensures you get a little bit of melted chocolate in every single bite.
Divide the batter evenly among the 12 muffin cups. Use the back of a spoon to press the mixture down slightly so the tops are flat and even.
Place the tin in the oven and bake for 18 to 20 minutes, or until the edges are firm to the touch. Remove from the oven and let them cool completely in the tin. This is important, as they will firm up as they cool.