Preheat your oven to 350 degrees and line a baking sheet with parchment paper.
In a medium bowl, whisk the flour, oats, cinnamon, baking soda and salt.
In a separate large bowl beat together the butter and apple sauce using an electric hand mixer. Add in the sugars, egg and vanilla and beat until well mixed.
Stir the dry ingredients into the butter mixture, followed by the raisins. Cover and chill 15 minutes.
Roll the dough into 1 Tbsp sized balls and press out to about 1/3 inch thick.
Bake until the edges are lightly golden brown and the cookies feel set, about 12-14 mins. Let cool completely on the pan.