Preheat the oven to 350 F and line an 8x8" baking pan with parchment paper.

Using a large bowl, combine the ground flax and water. Allow to sit for 5 minutes.

Add the oatmeal, oat flour, coconut sugar, collagen, cinnamon, salt and baking powder to the bowl and stir to combine.

Mix in the almond butter, coconut oil, maple syrup, almond milk and mix, ensuring that the almond butter is fully incorporated.

Fold in the chocolate chips and candy gems, reserving some to add to the top of the bars.

Add the batter to the baking pan and top with additional chocolate and candy gems. Transfer to the preheated oven and bake for 25-28 minutes or until firm and cooked through.

Remove from the oven and allow to cool slightly before slicing. Serve immediately or store in the fridge for 3-4 days.