In a large bowl, stir together the oats, walnuts, flaxseed, raisins and cinnamon. Add in the almond butter, honey and vanilla and mix until well combined (it will take a bit of arm power!).
Transfer the bowl to the refrigerator and let chill for 35 to 45 minutes.
Roll the chilled dough into balls about 1-inch in size (a small cookie scoop works great here!).
Store the balls in an airtight container in the refrigerator for up to 1 to 2 weeks.
