Spanish Madrid Stew

Name: Spanish Madrid Stew
Cuisine: European, Mediterranean, Spanish
Ingredients: 300g dried chickpeas (garbanzos), soaked overnight; 500g beef shank, cut into large chunks; 300g pork belly, whole piece; 200g morcilla (Spanish blood sausage); 200g chorizo sausage, whole piece; 1 bone-in ham hock; 2 medium carrots, peeled and cut into chunks; 2 medium potatoes, peeled and halved; 1 large cabbage, quartered; 1 leek, white part only, halved; Salt to taste; Freshly ground black pepper; Olive oil for drizzling