Preheat your oven to 325°F / 160°C.
Line an 8x8-inch square baking pan with parchment paper, leaving a 2-inch overhang on two opposite sides. This will help you lift the bars out later.
In a large bowl, whisk together the dry : oat flour, oat bran, Sucanat, baking soda, baking powder, cinnamon, nutmeg, and salt.
Stir in the flaxseed, hemp seeds, chopped nuts, and all the dried fruits.
Mix until everything is well combined and evenly distributed.
In a separate medium bowl, beat the whole egg, egg whites, and vanilla extract with a whisk until the mixture is thick and foamy.
Pour the wet egg mixture over the fruit and nut mixture.
Stir thoroughly with a spatula until every piece is coated.
Scrape the mixture into your prepared pan. Use the back of the spatula or your hands to press it down firmly and evenly, making sure to push it into the corners.
Bake on the center rack for about 30 minutes, or until the top is golden brown and the center is set.
Let the pan cool on a wire rack for about 15-20 minutes.
Then, use the parchment paper overhangs to lift the entire block out of the pan and place it on the rack to cool completely.
Once fully cooled, use a large, sharp chef's knife to cut into 16 even squares.
Enjoy!
