Power bars you bake yourself taste better than store-bought ones and are much less expensive.
One key ingredient is soy flour. If you can find a store that sells defatted soy flour use that! Then your power bars will have equivalent proportions of protein, carbohydrates, and fat to store-bought power bars. With normal soy flour there is more fat but the power bars are still definitely healthy.
Preheat the oven to 350 degrees.
Add to a large bowl (or mixer):
Mix well, then add:
When adding the dry ingredients, make sure then xanthan gum does not get wet until you really start mixing.
Bake in a jelly roll pan (a cookie sheet with walls) that has been sprayed with oil or has a silicon baking mat.
As with a bar cookie, it is done when it becomes firm and browns underneath (about 15 minutes).
Makes 16 bars, each with about 300 calories, 40 grams carbohydrates, 12 grams fat, 11 grams protein, and $0.30 cost. (Using defatted soy flour reduces the fat to 10 grams, and increases the cost to $0.50 per bar.)
For variations, the following work well: