The Apartment

1 onion, diced
15 oz pinto beans, drained and rinsed
15 oz black beans, drained and rinsed
15 oz kidney beans, drained and rinsed
45 oz diced tomatoes
1 cup water
2 Tbsp chili powder
1 1/2 tsp cumin
1 tsp coriander
1 Tbsp cocoa powder
1 chipotle pepper in adobo (from can), minced

1. In a large pot, saute onion in vegetable oil until browned.
2. Add beans, tomatoes, water, and spices. Simmer for about 30 minutes, stirring occasionally.
3. Adjust seasonings to taste, with salt, black pepper, and cayenne pepper.