It's really easy to make your own Larabar-type energy bars. All you need is a food processor, dried fruit (mostly dates), nuts, and spices. Here's a basic recipe (the amounts are approximate):
1 pound of dates
1 cup of nuts (almonds and cashews)
Handful of dried cranberries
Couple of dried apricots
Spoonful of unsweetened cocoa powder
Handful of coconut flakes
Chop the dates and any other dried fruits that you are using in a food processor. Scoop the resulting paste aside and then finely grind the nuts and spices. Mix the fruits and nuts together, kneading the mixture into a lightly greased pan (or one that is covered in wax paper). Flatten the mixture down by covering it with plastic wrap and pressing down and shaping with the back of a spoon. Then cool in the refrigerator overnight. In the morning, cut the mixture into individual bars, tightly wrapping each with plastic wrap and storing in the refrigerator.
This recipe made 7 bars, each approximately 200-300 calories. The main ingredient, dates, cost me $6 a pound, or 86 cents each bar, which you could lower if you bought in bulk. I found inspiration for this recipe at the following blog, which lists other Larabar recipe ideas:
Let me know if you figure out any other good combinations. I bought dried banana, mango, and brazil nuts to experiment with.