Cocoa Coriander Chili From Jenn de la Vega

Name: Cocoa Coriander Chili From Jenn de la Vega
Ingredients: 1 pound (450 g) dry red beans; 1 dried ancho chile; 1 pound (0.5 kg) ground beef; 2 tablespoons (30 ml) heavy cream; Olive oil; 1 large yellow onion, chopped; 1 clove garlic, grated; 1/8 cup (15 g) cocoa powder; 1/2 tablespoon (5 g) coriander seeds, toasted and crushed; 1 tablespoon (10 g) masa harina (see Note); Salt; 1 bay leaf; 1 smoked ham hock (see Note); 4 plum tomatoes, chopped (feel free to use canned whole peeled, chopped); 2 small Jamaica or Scotch Bonnet peppers, chopped (see Note); 1/2 teaspoon ground cumin; 1 quart (950 ml) beef broth; 1/4 cup (60 ml) plain yogurt; 1 bar dark chocolate