In a large bowl add the flour, sugar, baking soda, baking powder, salt and cinnamon. Whisk until well combined. In a separate bowl add the eggs and lightly beat with a whisk. Add in the milk, sour cream, and vanilla and whisk until well combined. Stir the met mixture into the dry ingredients until just combined. Fold in the chocolate chips until evenly distributed in the batter. Be careful not to overmix the batter.