Best Creamy Basil Chicken Skillet with Corn and Tomato Recipe

Ingredients

• 4 boneless, skinless chicken breasts (about 1 3/4 lb. total)
• Kosher salt
• Freshly ground black pepper
• 1/4 c. extra-virgin olive oil, divided
• 1 sweet onion, halved and thinly sliced lengthwise
• 2 c. cherry tomatoes, halved
• 4 cloves garlic, minced
• 1/2 tsp. crushed red pepper flakes
• 3 c. fresh or frozen corn kernels (from about 4 ears)
• 1/2 c. heavy cream
• 1/2 c. fresh basil leaves, chopped
• 1/4 c. finely grated Parmesan