Melt butter in a dutch oven and add the onions. Cook for about 4-5 minutes add the garlic and cook for an additional 2 minutes
Add all the remains ingredients except for the shredded chicken and tortilla chips. Mix and bring to a boil. Once boiling, reduce to a simmer for 20 minutes. Add salt & pepper to taste.
Add the shredded chicken and stir to mix and simmer for an additional 30 minutes.
Add any additional toppings of your choice