Prepare Your Ingredients: Gather all ingredients. Drain the white corn and keep your spices and cans within reach to ensure a smooth cooking process.
Layer the Slow Cooker: Start by layering the chicken breasts at the bottom of your slow cooker. Add the great northern beans and white corn on top, creating a solid base for the chili.
Mix the Sauce: In a bowl, whisk together the chicken broth, condensed cream of chicken soup, chopped green chile peppers, and taco seasoning. Pour this flavorful mixture over the ingredients in the slow cooker.
Slow Cook to Perfection: Cover the slow cooker and set it to Low. Cook for 8 to 10 hours, or until the chicken is tender and fully cooked. An instant-read thermometer should read at least 165°F (74°C).
Shred the Chicken: Remove the chicken breasts from the slow cooker and transfer them to a cutting board. Use two forks to shred the chicken into bite-sized pieces, then return it to the slow cooker.
Add the Final Touches: Stir in the sour cream and shredded pepper Jack cheese. Cover and cook for an additional 3 to 5 minutes, or until the cheese has melted into the chili.
Serve and Enjoy: Ladle the chili into bowls and garnish with your favorite toppings, such as chopped cilantro, diced avocado, or extra cheese. Serve with tortilla chips or warm cornbread for a complete meal.