Preheat the oven to 180°C (356°F).
In a bowl, mix protein powder, oat flour, baking powder, and salt.
In another bowl, beat together the egg, milk, olive oil, and honey.
Combine the dry and wet ingredients to make a dough.
Add nuts and raisins, and gently mix.
Divide the dough into appropriate sizes and place on a baking tray.
Bake in the oven at 180°C for 15-20 minutes.
Let cool before serving.