Preheat oven to 400 F.
Line a muffin tin with paper liners
Whisk together the flour, baking powder, salt, and cinnamon. Set aside.
Beat together eggs and sugar until mixed.
Beat in milk, oil, and vanilla until well blended.
Combine ½ of the flour mixture with the wet ingredients and stir until combined. Do not overmix!
Add the chocolate chips to the remaining flour mixture and toss to coat.
Gently fold the chip mixture into batter until well distributed.
Fill each liner in muffin pan with batter and sprinkle top with sparkling sugar.
Bake at 400 for 5 minutes. Reduce the oven temperature to 375 and bake for 20 - 25 minutes or until a toothpick inserted in the center comes out clean.
Let cool before serving.