Preheat the oven to 350 F
In a large bowl, whisk together the almond butter, eggs, coconut oil, sugar and vanilla until smooth. If your almond butter is not smooth or stays clumpy, you can use an immersion blender or blend the wet ingredients instead, then transfer them back to a bowl.
Add the rolled oats, oat flour, cinnamon, baking soda, salt and chocolate chips into the bowl and mix well.
Line a 9 x 9 baking dish with parchment paper and flatten the mixture into the pan. Sprinkle with a few extra chocolate chips.
Bake for 22-25 minutes, until the top is firm to touch. Let cool for 10 minutes before slicing.
Keep stored in an airtight container for up to 5 days, or freeze for up to 3 months.