Soak the oatmeal in milk for 10 minutes.
In a bowl, mix the soaked oatmeal, whole wheat flour, baking powder, salt, and honey.
Chop pistachios and add them to the dough.
Place the dough in a mold and bake in a preheated oven at 180°C for 30 minutes.
Let it cool and cut into pieces for serving.