I'm not sure this is really a chilli - far too many ingredients, and sweet potato? But it tasted good, and certainly covers most of your "five-a-day". I was going to make it in the slow cooker, but ended up doing rice pudding instead so just cooked it on the hob. I should have used another chilli, too, but I wasn't sure how strong the ones I'd bought were so played it safe.
1 medium red onion, chopped
1 green bell pepper, chopped
4 garlic cloves, chopped
2 fresh chillies
1 tablespoon ground cumin
2 teaspoons unsweetened cocoa powder
1/4 teaspoon ground cinnamon
Salt and black pepper
5 ripe tomatoes, chopped
Jar white beans
Jar kidney beans
1 medium sweet potato, peeled and cut into 1⁄2-inch pieces
Soften the onions for about 5 minutes over a medium heat, then add the pepper, chillies and garlic and keep frying for another 5 minutes or so.
Add the remainder of the ingredients and simmer for an hour or so. If it looks too dry add a glass of water.