- Whisk together the flour, cocoa powder, salt, baking soda, and baking powder in a mixing bowl until combined.  
- In a separate bowl, whisk together the greek yogurt, vanilla extract, melted butter, and maple syrup.   
- Whisk the eggs into the other wet ingredients.  
- Add the dry ingredients to the wet and mix until just combined using a rubber spatula. Do not over mix the batter.  
- Fold in the mini chocolate chips using the rubber spatula. 
- Spray a mini muffin tin with nonstick spray. 
- Distribute the batter into the pan, filling each mini muffin tin ¾ of the way full. The easiest way to do this is by using a mini cookie scoop. Note - this will make 1 and a half tins full of muffins, you will not use all the batter for one muffin tin. It will yield 36 mini muffins in total 
- Bake the mini muffins at 350°F for 12-14 minutes, until a toothpick inserted comes out clean 
- Cool the mini muffins 2-3 minutes in the pan, then remove them onto a wire cooling rack to cool completely