Combine almond milk and apple cider vinegar in a medium-sized bowl and let sit for a few minutes to curdle. Whisk in the maple syrup, pumpkin puree, and vanilla extract.
Add dry ingredients to a sifter and sift over the wet ingredients, then stir together (do not over-mix). Add in the chocolate chips and let batter sit for a few more minutes while heating a non-stick pan over medium-high heat.
Drop batter onto pan using a 1/3 or 1/4 measuring cup, and flip when edges are dry, cooking until both sides are golden brown. Serve with maple syrup, and more chocolate chips and cinnamon, if desired.