Preheat the oven to 350 degrees.
Blend the chickpeas and nondairy milk until totally smooth.
In a large bowl, mix the chickpea puree, date paste, and molasses.
Add the oat flour, pumpkin pie spice, and ground ginger, and stir to combine.
Fold in the vegan chocolate chips, and pour the batter into a nonstick or parchment-lined square pan.
Bake the bars for 40 minutes, then let them cool for at least 30 minutes in the pan before serving.
Top with a drizzle of melted chocolate if desired.
Store leftovers in the refrigerator.