Preheat the oven to 400F. Line a 12 cup muffin tin with paper liners or grease with nonstick cooking spray. Set aside.
In a medium bowl, whisk the gluten-free flour blend, granulated sugar, baking powder, ground cinnamon, baking soda, and salt together. Set aside.
In a large mixing bowl, add together the milk, eggs, vegetable oil and vanilla extract. Whisk until smooth.
Pour the wet ingredients into the dry ingredients. Mix until combined.
Fold in 1 cup of the mini chocolate chips, reserving the rest for later.
Portion out the muffin batter into the prepared muffin tin. The muffin cups will be almost filled to the top.
Sprinkle the tops with the remaining 1/2 cup of mini chocolate chips and the turbinado sugar.
Bake at 400F for 15-17 minutes, until the muffins are browned and cooked through.
Let the muffins cool for 5 minutes before removing from the muffin tin. Set on a cooling rack to finish cooling.
Serve and enjoy!