Make flax egg by whisking together ground flaxseed and warm water. Set aside. Add 2 cups rolled oats to a food processor and pulse until finely ground.

Add all of the ingredients to a mixing bowl and stir until just combined.

Line a baking pan with parchment paper then pour in the dough, spreading into an even layer. Bake at 350F for about 20 minutes, until set and a toothpick inserted comes out clean.

Once baked, remove from oven and cool completely on a wire rack. Slice into bars or use cookie cutters to make fun shapes.