1.6g baking soda
Grind the oatmeal
Mix lemon juice into milk (until it thickens)
Oatmeal flour -> Baking soda -> Salt -> Lemon milk
Preheat at 170°C for 5-10 minutes -> Bake at 170°C for 15 minutes, then at 160°C for 5 minutes
If you cut a cross on top with a knife, it will be baked well