Make the flax eggs first: mix 2 tbsp ground flax seeds with 6 tbsp water and let sit for 10 minutes until gelatinous.
Preheat your oven to 180°C and line a baking tray with parchment paper.
In a large bowl, whisk together the olive oil and coconut sugar until combined.
Add the flax eggs and oat milk and mix well.
Add the oat flour, carob powder, baking powder, and salt. Stir until a dough forms.
Fold in the chocolate chips and/or chopped dates if using.
Scoop the dough onto the prepared baking tray, leaving space between each cookie. Flatten them slightly with your hand or the back of a spoon, as these don't spread much on their own.
Bake for 12-14 minutes until set around the edges but still slightly soft in the center.
Leave on the tray for at least 10 minutes before eating. They firm up as they cool and the texture improves significantly once they've had time to set.