Alton Brown has a highly rated beef jerky recipe. To make it, gather flank steak, Worcestershire sauce, honey, soy sauce and black pepper. Also have onion powder, liquid smoke and red pepper flakes available.
Trim all of the fat off of 1 1/2 to 2 pounds of flank steak, and place it in a zip-top bag. Place the meat in the freezer for one to two hours to help it firm up. Remove the steak, and slice it thinly into strips. Take a large gallon-size zip-top bag and add 2/3 cup each Worcestershire sauce and soy sauce, 1 tablespoon honey, 2 teaspoons freshly ground pepper and 2 teaspoons onion powder. Also add 1 teaspoon each red pepper flakes and liquid smoke, and then place the steak in the bag.
Shake the bag to distribute the ingredients, and then place it in the refrigerator for three to six hours. If using a home dehydrator, follow the directions from the manufacturer. Alternatively, air filters and a box fan can be used to dry the meat. Place the meat strips on three air filters, stacking them on top of each other. Top with an empty filter, and lay the box fan on its side.
Place the filters on the top of the fan and strap them down with bungee cords. Place the fan upright, set it to medium and allow the fan to run for up to 12 hours, until the meat is dry.