1 (3 pound) pork tenderloin
4 cups water
2 tablespoons soy sauce
1 (10.75 ounce) can condensed cream of mushroom soup
1 (10.75 ounce) can ketchup
1 1/2 cans tomato paste
1 1/2 cups water
1 tablespoon white vinegar
1 teaspoon salt
In a small saucepan, mix together 4 cups of water, soy sauce, cream of mushroom soup, ketchup, tomato paste, water, vinegar, and salt. Bring to a boil. Reduce heat to low. Cover, and simmer for 45 minutes.