Preheat oven to 350℉.
Line cookie sheets with either parchment paper or silpat liners. Set aside.
In a mixing bowl combine the dry ingredients; flour, salt, baking soda, baking powder, and cinnamon. Set aside.
In the bowl of a stand mixer cream together, on high speed, butter, sugar and and brown sugar until light and fluffy, about 4-5 minutes. Scrape down the sides of the bowl as needed.
Reduce speed to low and add eggs, one at a time.
Add vanilla and water and mix until everything is well combined.
Slowly add flour mixture and stir on low speed until combined.
Add oats and raisins and mix until thoroughly blended and combined.
Use a cookie scoop to portion out large tablespoon sized balls of dough about 2 inches apart on each cookie sheet.
Bake for 12 - 15 minutes until edges are a light crisp brown.
Remove from oven and allow cookies to cool on the cookie sheet for 5 minutes.
Use the top edge of a spatula to shape cookies into rounds if needed while they are still hot.
Transfer cookies to a rack to cool completely.
Store in an airtight container for up to 4 days.