Season the chicken with ½ teaspoon salt and pepper.
In a large skillet, heat 1 tablespoon of oil over medium-high heat.
Add the chicken and cook, in batches if needed, for 3 to 4 minutes per side or until cooked through. Transfer to a plate to keep warm.
Add the remaining oil and add the garlic, basil, and red pepper flakes. Cook for 1 minute.
Stir in the heavy cream, broth, tomato paste, and remaining ¼ teaspoon salt and simmer uncovered until slightly thickened, about 5 to 8 minutes.
Add the chicken and sundried tomatoes to the pan. Simmer for an additional 3 to 5 minutes or until the chicken is heated through.
Stir in the Parmesan cheese and garnish with additional fresh basil if desired.
Notes
Replace cutlets with boneless skinless chicken breasts. Starting with the thicker end, cut the chicken in half horizontally with a filet knife before cooking, or pound it with a meat tenderizer until ½ to ¾ inch thick.