Step 1

Add beans to a large bowl or pot, and cover with 8 cups of water. Leave overnight. Discard the soaking water.

Step 2

Combine onion, garlic, carrots, celery, black pepper,  thyme, bay leaf, soy sauce, chicken broth, and diced tomatoes in slow cooker. Add the hambone in too.

Step 3

Add beans to slow cooker, mix well, and cook on low for 8-10 hours.

Step 4

Remove ham bone and bay leaves from soup, discard.

Step 5

Devour.