Chicken with Spinach Tagliatelle and Parsley Pesto Recipe

Name: Chicken with Spinach Tagliatelle and Parsley Pesto Recipe
Ingredients: Kosher salt; Sugar; 12 ounces boneless, skinless, chicken breast (about 2 small breast halves); 4 cups lightly packed Italian parsley leaves; 1/2 cup pine nuts, lightly toasted; 4 medium cloves garlic; 1/3 cup olive oil, plus extra for greasing pan; 1/4 teaspoon chili flakes; 3 ounces Parmesan cheese, grated, plus extra for serving on side; Freshly ground black pepper; 1 pound fresh spinach tagilatelle; 6 ounces baby spinach