Pre-heat oven to 350 degrees. Line a cookie sheet with parchment paper or silicone mats.
In a medium bowl, mix the oats, flour, baking soda, salt, and ground cinnamon. Whisk well until fully mixed together.
In a large mixing bowl with an electric mixer, beat the Crisco shortening, granulated sugar, and brown sugar on high speed until well combined.
Add the egg and vanilla extract and beat on medium speed with an electric mixer. It will look thin and somewhat runny at this time.
Slowly add the dry ingredients, mixing on low speed in between each addition.
Stir in the raisins by hand until evenly dispersed throughout the dough.
With a cookie scoop, make cookie dough balls that are 1 heaping tablespoon or about 30g. Add the to your cookie sheet with approximately 2" spaing between each cookie.
Bake for 10 -12 minutes until the bottom edges are golden brown.
Allow the cookies to cool on the baking sheet and transfer to a wire rack to cool completely.