Dice the onion into small, ½ inch pieces.
Remove the core and seeds from the bell peppers and dice them into ½ inch pieces.
Rinse and drain the beans.
Set all of the vegetables aside.
Sauté the chopped onions for 2-3 minutes in a skillet and then add the ground beef. Add a pinch of salt / pepper to your taste.
Cook the ground beef thoroughly (about 8 minutes).
Drain the meat mixture and place into the slow cooker.
Sprinkle the chili powder, garlic powder, cocoa powder, oregano, and cinnamon over the meat mixture.
Pour in the beans, add the can of diced tomatoes over everything, and then the broth or water.
Add your raw bell pepper and top with salt and pepper.
Set your slow cooker to low heat for 7-8 hours or cook on high heat for about 5-6 hours.
If I’m at home, I normally do the high-heat method. But if I’m going to be out all day, I’ll do low and slow.