Preheat your oven to 375°F (190°C).
Mix garlic powder, smoked paprika, cumin, salt, and pepper; rub onto both sides of each chicken breast.
Heat olive oil in a large oven-safe skillet; add seasoned chicken breasts and cook until browned on both sides.
Melt butter in the skillet; sauté minced garlic and sliced jalapeños until fragrant, then mix in softened cream cheese and sour cream until smooth.
Gradually pour in chicken broth while stirring until the sauce is creamy; return seared chicken to the skillet.
Sprinkle shredded cheddar cheese over everything and bake for about 15-20 minutes until fully cooked and cheese is bubbling.