Okay. Here's an easy treat for camping, if you do a little pre-prep at home.
Buy some cornmeal and some good crackers -- (Ritz or Keebler Club work well). Buy a couple, or three, decent sized yellow (sweet) onions.
Using a mandoline
Slice the peeled onions very thin and place them in a Ziplock bag.
In the blender, whiz about 25 crackers with 1/2 cup of cornmeal until you have a powder as fine as flour. Now season it: use 1/2 teaspoon Gebhardt chili powder, 1/4 teaspoon cayenne pepper, 1/2 teaspoon ground white pepper, 1/4 teaspoon garlic powder, 1/2 teaspoon ground coriander, 1/4 teaspoon chipotle chili powder, 1/8 teaspoon salt, and 1/8 teaspoon ginger. Add spices to powder in blender and mix well. Pour into a Ziplock bag, roll up to remove excess air and seal bag.
At camp: put 1/2'' oil in the bottom of a cast-iron skillet and heat until a cube of bread comes to the top immediately; while it's heating, add the spiced cornmeal/cracker meal to the onions and shake bag to coat, kneading to mix. Using a fork, drop generous portions of the onions into the hot oil; as each batch finishes cooking lift them out of the oil, let them drain over the pan until they stop dripping, and set aside. Serve warm in lieu of fries.