Care to share a protein bar recipe?

If you have the time and energy, making snacks from scratch guarantees you know exactly what your kids are eating. Kim has an excellent goal and is looking for a few good recipes to keep her kids happy and healthy:

One of my new years resolutions is to make more homemade food to cut down on the trips to the store, fuel, money, and junk food. So I would like to make my own snack bars that have some amount of protein in them. Does  anyone have a good recipe to share?