Warm a large pot over medium heat.
While the pot warms, chop onion, garlic, and mushrooms.
Put a small amount of vegetable broth into the pot, then add in the onion and the garlic.
Sauté the onions until they are translucent and the garlic is fragrant then, add the mushrooms, tomatoes, black beans, cumin, oregano, smoked paprika, and chipotle hot sauce.
Bring the chili to a simmer over medium-high heat, cover, and cook for 40 minutes.
Stir the corn into the chili, then serve over sweet potatoes, regular potatoes, or rice.