I always crave food high in fat when out in the backcountry. Bean burritos, bean salad, and my favorite hummus. While on the Highline trip one of the gals in our party had brought some homemade dehydrated hummus. I watched in amazement as a ziplock of powder was turned into a magnificent Middle East culinary experience (AKA: Hummus). The following week I toyed around with different dehydrated beans and created a hummus mix out of lentils. It was delicious, rehydrated excellent in the backcountry and was very light for the amount of calories it packed.
The DIY dehydrated hummus was great but I was concerned about the longevity of a dip made with a high amount of fatty oils. Oils turn rancid rather easily and are not always great in dehydrated form. Making the beans separate and then bringing any ingredients to 'spice' them up was a much more stable solution.
The instructions below can be used for any type of legume. I used chickpeas in the demonstration because I happen to have a 1lb bag handy. There are plenty of online recourses that you can find for 'bean bark' recipes as it is commonly referred to.
DIY Dehydrated Beans
I calculated that a 1lb bag of chickpeas comes to 1430 calories. Cooked the beans come out to 5.5 cups. So a cup of the cooked beans comes out to approximately 260 calories. Add these beans to pasta or rice and you can easily have a high calorie meal for cheap and at a minimal weight.