Easy Crock Pot Marry Me Chicken with Creamy Parmesan Sauce

Ingredients

• 2 lb (900 g) boneless skinless chicken breasts
• 1 teaspoon kosher salt
• 1/2 teaspoon black pepper
• 1 tablespoon olive oil, optional for searing
• 1 tablespoon unsalted butter, optional for searing
• 1 cup (240 ml) low-sodium chicken broth
• 1 tablespoon cornstarch
• 4 cloves garlic, minced
• 1 teaspoon Italian seasoning
• 1/2 teaspoon paprika
• 1/4 teaspoon crushed red pepper flakes, optional
• 1/2 cup (75 g) oil-packed sun-dried tomatoes, drained and chopped
• 1 cup (240 ml) heavy cream, warmed slightly
• 1/2 cup (45 g) freshly grated parmesan cheese
• 2 tablespoons chopped fresh basil, plus more for serving