Codfish Balls With Marinara Sauce

Name: Codfish Balls With Marinara Sauce
Ingredients: 28 oz Can San Marzano Tomatoes (crushed with fingers or with a couple of turns in blender or processor); 3 Tbsp. Olive Oil; 3 Cloves Cloves Fresh Garlic (chopped finely); 4 Tbsp. Chopped Fresh Basil; Kosher Salt and Freshly Ground Black Pepper to taste; 1 Lb Salt Cod (OR); 1 Lb Fresh Cod; 3 Medium Potatoes (skinned, boiled and mashed); 2 Tbsp Butter softened; 1/2 Onion ( chopped finely); 1/4 Cup Fresh Parsley (Chopped); 1/4 Cup Capers (rinsed and drained); 1 Egg (beaten); Dry breadcrumbs (can be seasoned or not); Kosher Salt and pepper to taste