Process tomatoes in a food processor until finely chopped.
Pour chopped tomatoes into a fine-mesh strainer and drain all juice; return strained tomatoes to food processor. Add almonds, basil, Parmesan, olive oil, garlic, anchovy fillets, pepperoncini pepper, golden raisins, capers, and chile flakes to chopped tomatoes and process in the food processor until finely chopped. Season with salt and ground black pepper to taste.
