PREP: In a pan over medium heat, melt butter and then add onions until softened and translucent (~3-5 minutes), then add minced garlic, cooking for an additional minute.
2 tbsp butter, 1 yellow onion, small,, 3 tbsp garlic,
MAKE SOUP BROTH: Add chiles, tomato paste, corn, beans, tomatoes, broth, cumin, and taco seasoning (and cayenne, if you're using) to the pan. Increase heat to medium/high (like a 7/8) and bring to a light boil. Once lightly boiling, lower to medium heat again.
4 oz green chiles,, 1 1/2 tbsp tomato paste, 15 oz corn,, 15 oz black beans,, 14.5 oz fire roasted tomatoes, 5 cups chicken broth, 2 tsp cumin, 3 tbsp taco seasoning, cayenne pepper (optional),