ADD your bacon to a large, cold skillet and cook over low heat until crisp. Transfer the bacon to paper towels.
ADD the ground beef to the bacon drippings. Cook, stirring frequently, until browned, 8 to 10 minutes. Drain off the fat if needed, then transfer to your slow cooker.
Roughly chop or crumble three-fourths of the bacon and add to the slow cooker. Then stir in the chili powder, salt, tomatoes, broth, onion, bell pepper, jalapeño, and garlic.
COVER with the lid, then cook on high for 4 hours or on low for 6-8 hours.
SERVE the chili topped with the remaining bacon and cilantro if desired.