Mix all the spices together and set aside.
In a medium bowl, mash together milk and bread until it forms a paste.
Using you hands, mix in the beef, spices, tomato paste, and milk/bread paste until all the ingredients are blended together. Don't over mix.
In a large pan heat oil on high. Cook meat mixture, in batches if needed, until it is browned and no longer pink in the middle. Transfer to slow cooker.
Add tomato puree, diced tomatoes, kidney beans, soy sauce, and brown sugar to the slow cooker. Stir a couple times until everything is blended.
Cook on high 3-5 hours or low 6-8 hours. Mine cooked perfectly on high for 5 hours.