Honestly man, i really think those protein bars are garbage. Even the macro's in the homemade ones could be better, although not bad.
Just get a bunch of shakers, keep one in your car with 2 scoops whey in it. Fill it up at a sink, water fountain, etc.
Here is what i use, you have to refridgerate them
5 tbsp natural peanut butter (chunky or smooth)
1 cup oats
6 scoops chocolate whey protein (approximately 132 grams worth of low-carb protein powder)
1 teaspoon vanilla extract
2 tablespoons flax seeds (optional)
1 cup non-fat dry milk
1/2 cup water (depending on what type of protein you use, you may need to add more)
Spray an 8x8 baking dish with non-stick cooking spray. Combine dry ingredients in a medium size bowl and mix well. Add peanut butter and mix - the mixture will be crumbly and dry.Add water & vanilla.Using a wooden spoon or rubber spatula, everything until a dough forms.
The dough will be sticky. Spread dough into pan using a clean wooden spoon or spatula that has been sprayed with non-stick cooking spray. Refrigerate a few hours (or freeze for an hour) and cut into 9 squares. Wrap bars individually (use sandwich bags or plastic wrap) or store in covered container between sheets of wax paper. Keep refrigerated.
(Note i usually cut into 6 squares)