In a large frypan, heat oil over medium heat and add Chorizo. Cook until browned and crispy, about 10 minutes.
Use a slotted spoon to transfer chorizo to a paper towel lined plate.
Add onion to chorizo drippings, and add some additional oil if needed. Sauté until lightly browned.
Add red bell peppers, garlic and Mae’s Chipotle. Sauté until softened, (5 - 10 minutes)
Meanwhile, in a large pot add tomatoes and break up abit, leaving some chunks; add in chorizo, onion mixture, beans and chicken stock.
On medium - high heat bring to a boil; add corn. Simmer about 20 minutes. Serve with sour cream if desired.