In a separate bowl, whisk together the egg whites and sweetener.
Add to dry ingredients and mix very well, ensuring all is coated with egg whites. The egg whites act as a binder which is what gives you the crispy nuggets of goodness.
Line a baking sheet with parchment paper and add mixture in an even layer.
Bake in middle rack for 12 - 15 minutes (check for crispy level), then remove from oven and flip cereal. Here is where you'll have large chunks - flip them but ensure that you rearrange so that it lies flat again to the baking pan.
Bake for another 10-13 minutes.
Cool and then store in an airtight container.
Notes
Nutritional value is approximate based upon cup serving.StorageStore in an airtight container for 2-4 weeks. SubstitutionsOats: Whole or steal cut are great for this recipe. Nuts: Add your favorite (unsalted) nuts! TVP: Can't find it or don't want to use it? No problem, swap this out for more oats.Agave: Use your favorite all-natural sweetener. Egg Whites: Use 2 tablespoons of ground flaxseed +6 tablespoons warm water. Stir it vigorously together and then let it rest for 5 minutes before using. Adjust the SweetnessUse a little more of your natural sweetener or choice to add a little more sweetness to the cereal. We find that 1/4 of a cup is enough to mimic the boxed cereal, but if you want it sweeter, use as much as 1/3-1/2 cup.