Using a shortbread or shortcake recipe.
Substituting the (wheat) flour for a protein-rich alternative, or adding vital wheat gluten to add some protein, or substituting oatmeal and/or small nuts for the flour.
Incorporating either a liquid or powdered-solid multivitamin into the food.
Small dried foods like blueberries or cherries in the dough (shortbread), or dried meats and veggies (shortcake).
Use real butter, or a mix of real butter and a fattier (yet still healthy) fat.
Any thoughts? What are other items easy to make/pack?