As we experiment with Mango's diet we learn more about what works for her (and what doesn't) almost daily.
One great discovery has been organ meats. Great for her, and great for training and getting her attention too, like when we need to her to pose just so for a Boho Mango custom collar modeling session.
Chicken livers and similar organs like hearts, kidney, spleen, pancreas, brain are nutrient rich and are great sources of vitamins for your dog. While you want to keep it at about 10-15% of your dog's diet depending on your dog's activity level (and livers in particular you don't want to overdue because of the high amount of vitamin A, which can cause diarrhea if too much is taken in).
Here's a simple recipe for preparing bags of liver treats for your dogs (again, substitute other organs depending on what's available to you). You can use an oven for the same results, but I use a small grill as I don't often have access to an oven on the road.
1. Get a tub of frozen chicken livers like this one at your local supermarket. Cost was about $3. Defrost at home when you are ready.
2. Preheat grill (or oven) to 200.
3. Line a grill pan with foil and spread the liver out on the foil
4. Close grill cover and cook for about 15-20 minutes, or just long enough to make the liver cooked and sliceable. Looks like this:
5. Slice the cooked liver into chunks or slivers, as you wish. I normally then divide it all up into about 3-4 small zip lock backs and freeze them. Pull them out when ever you need treats for your dog - for walks and training sessions, or when you need to call them back from an escape attempt. (If you don't freeze them, they do get a little smelly after a while, and I find Mango doesn't mind if they are frozen.)
Here's a similar recipe using an oven.