In a large mixing bowl, combine Oats, Rice Krispies Cereal and Flax Seed.
In a microwave safe bowl combine Peanut Butter, Honey, Vanilla and Brown Sugar. Microwave in 30 second increments, stirring in between, until melted and smooth.
Using a spatula or your hands, combine the peanut butter mixture with the dry ingredients.
Press into the 8x8 baking dish and refrigerate for 1 hour.
After 1 hour, remove from baking dish and cut into bars.
*If Flax Seed is unavailable you can substitute with an additional ½ Cup Rice Krispies.
Recipe by Simply Shellie at https://simplyshellie.com/bake-peanut-butter-granola-bars