Preheat the oven to 180°C fan
In a greased baking dish combine all the base ingredients (rolled oats, apple sauce, protein powder, milk, baking powder, and almond extract) and mix well
In a small bowl, mix together the ground almonds, maple syrup (or honey) and almond butter
Spoon the almond mixture over the top of the oat base and spread
Sprinkle the flaked almonds over the top
Bake for 35–40 minutes, until set and lightly golden
Allow to cool for at least 15 minutes
Sprinkle with icing sugar if using
Leave to cool completely (around 2 hours) before cutting for clean slices
Store in the fridge for 3–4 days
