In a large bowl combine the dry ingredients (flour, oats, salt, baking soda, brown sugar, white sugar, and nutmeg). Stir well with a large spoon.
Next, add in the wet ingredients (softened butter, eggs, and vanilla extract). Mix well with a hand mixer until everything is well combined. Do not over mix.
Stir in the raisins with a large spoon. Dough may seem crumbly at first but it will come together when you form the dough into balls.
Form the dough into balls (about 2 ½ tablespoons each) and place on a baking sheet lined with parchment paper (NOT wax paper).
Bake for 13 to 15 minutes at 350 degrees or until edges are golden brown. Let them rest on the baking sheet 15 minutes after baking before transferring. They may seem undone when they first come out but they will finish baking on the sheet outside of the oven.
Notes
Be sure to mix the dry ingredients first. This helps to make sure that no one gets a big bite of salt or baking soda.
The cookies should be golden on the edges but may not seem done when they first come out of the oven. They will finish baking on the sheet.