Sesame Seed-Crusted Chicken Parm

Name: Sesame Seed-Crusted Chicken Parm
Cook time: 2 h 15 min
Total time: 2 h 15 min
Cuisine: American, Italian
Ingredients: 4 boneless skinless chicken breasts (about 2 lb.); 1 c. buttermilk; 1/4 c. Dijon mustard; 3 1/2 tsp. kosher salt, divided; 1 c. sesame seeds; 3/4 c. all-purpose flour; 1/2 c. cornstarch; 1/2 c. freshly grated Parmesan; 1/2 c. to 1 c. peanut or vegetable oil; 4 c. marinara (store-bought or homemade); 1 1/2 tbsp. harissa paste; 1/4 tsp. to 1/2 tsp. crushed red pepper flakes; 1 1/2 c. shredded provolone; 1/4 c. freshly grated Parmesan; 1/4 c. torn fresh basil