In the bowl of an electric stand mixer fitted with a paddle attachment, beat the margarine with the sugars until combined.
Add in the eggs one at a time and mix until combined.
Add in the Matzolah, cake meal, potato starch, pudding mix, baking soda, salt, cinnamon, and vanilla and mix until combined.
Finally, add in the raisins and mix until combined.
Using a cookie scoop or two spoons, drop a 2 tsp. amount of batter onto parchment lined cookie sheet.
Bake for 8-10 minutes until the cookies just start to brown on top. Allow to cool for a few minutes on cookie sheet before transferring to cooling rack because the cookies will be very soft. Once cool they will firm up a bit.
Recipe by Lil' Miss Cakes at https://lilmisscakes.com/2013/passover-oatmeal-raisin-cookies