Heat one tablespoon olive oil in a large skillet over medium-high heat. Season chicken breasts with salt, pepper, chili powder, and cumin. Add the chicken to your skillet and sear for 4 minutes on each side, until it is lightly brown.
2 tablespoons olive oil, 4 (5-6 oz.) chicken breasts, ½ teaspoon salt, ½ teaspoon black pepper, ½ teaspoon chili powder, ½ teaspoon cumin
Remove chicken breasts from the skillet and place it on a plate. Tent it with aluminum foil to keep it warm. (They will finish cooking later.)
Reduce heat to medium and add the remaining olive oil (1 tablespoon) to your skillet.
Add diced onion and jalapeño and cook for 4-5 minutes, until softened. Stir occasionally. Add the garlic and saute for 30 more seconds.
½ cup white onion, 3 medium jalapeños, 2 cloves garlic
Add the chicken broth and cream cheese. Stir until it's melted. Add the shredded cheddar cheese and stir until it's melted and the mixture is simmering.
1/2 cup low-sodium chicken broth, 4 ounces cream cheese, 1 and ¼ cup cheddar cheese
Return the chicken breasts to the skillet, along with any juices. Spoon the sauce over the chicken.
Cover the pan, reduce the heat to low and cook for 7-9 minutes, until the chicken is cooked through. (It will depend on how thick your chicken breasts are.) About halfway through, spoon more sauce over the chicken.
Serve chicken breasts with extra sauce spooned over the top, and enjoy!