Mix together TruMoo milk and vinegar. Let sit 5 minutes.
In a large bowl, mix together flour, sugar, baking powder, baking soda, salt and cinnamon.
Add egg, oil, vanilla and pumpkin to milk mixture. Stir well.
Pour wet ingredients into dry. Mix well until all lumps are removed.
Lightly grease and preheat griddle or pan to medium heat. Using a 1/4 cup measuring cup, ladle pancake mix onto griddle. Add chocolate chips in a jack-o-lantern face pattern. Cook until bubbles form. This mixture will not bubble quite as much as regular pancake mix. Flip.