Heat a large heavy-bottomed pot over medium heat, then add oil and sauté the chopped onion until translucent and fragrant, about 3 minutes.
1 medium onion
Add the minced garlic to the pot and cook for another minute until fragrant, stirring constantly to prevent burning.
1 medium onion
Stir in the diced chicken breasts and cook until they are lightly browned, about 5 minutes, stirring occasionally.
1 medium onion
Pour in the chicken broth and bring the mixture to a gentle simmer, then add the chopped tomatoes, corn kernels, and sliced jalapeños.
1 medium onion
Reduce the heat to low and let the soup simmer gently for about 20 minutes, stirring occasionally, until the chicken is cooked through and flavors meld.
Taste the soup and season with salt and black pepper as needed, adjusting the spice level to your preference.
1 medium onion
Just before serving, stir in the chopped cilantro and squeeze fresh lime juice into the hot soup, giving it a bright, herby finish.
1 medium onion
Ladle the steaming, vibrant soup into bowls and enjoy immediately, savoring the warm flavors and lively textures.