Hard boil meat (be it beef, chicken or pork) in 2 boullion cubes and 16 ounces of water for the most tender meat that even a small child can eat without teeth or an adult without their dentures. Take the meat flavored water to make a low calorie gravy with the directions that are on any corn starch box. This is the only way I have made gravy in over 20 years, IT IS THAT GOOD AND EASY.
Doing any meat this way is also much easier on me. Get the water to a full rolling boil before adding but cut up pieces of meat and boil hard for about 10 to 15 minutes (depending on how well you like your meat done).