1. In a bowl, stir together oats, flour, LEANFIT protein powder, baking soda, cinnamon and salt and set aside.

2. In another large bowl, beat the brown sugar, butter, eggs, water and vanilla until smooth.

3. Stir the oat mixture into the butter mixture until combined.

4. Optional: Add raisins and mix evenly.

5. Preheat oven to 190°C (375°F).

6. Drop the dough by heaping tablespoonfuls onto a baking sheet lined with parchment paper and flatten slightly.

7. Bake until firm and golden on bottom, about 8 minutes.

8. Let cool on a rack.