Black Bean Mocha Soup

Name: Black Bean Mocha Soup
Ingredients: 1 tablespoon olive oil; 1 yellow onion, chopped; 4 cups cooked black beans; 2 cups brewed coffee; 1 cup vegetable broth; 2 teaspoons dark cocoa powder; 1 teaspoon espresso powder; 1 pinch cayenne; 1 pinch cinnamon; zest of 1 lemon; 1 teaspoon honey; salt, to taste